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3. Angiography-Based 4-Dimensional Superficial Wall Strain and Stress: A New Diagnostic Tool in the Catheterization Laboratory

Author

Wu, X, Ono, M, Kawashima, H, Poon, EKW, Torii, R, Shahzad, A, Gao, C, Wang, R, Barlis, P, von Birgelen, C, Reiber, JHC, Bourantas, C, Tu, S, Wijns, W, Serruys, PW, Onuma, Y, Wu, X, Ono, M, Kawashima, H, Poon, EKW, Torii, R, Shahzad, A, Gao, C, Wang, R, Barlis, P, von Birgelen, C, Reiber, JHC, Bourantas, C, Tu, S, Wijns, W, Serruys, PW, and Onuma, Y

Abstract

A novel method for four-dimensional superficial wall strain and stress (4D-SWS) is derived from the arterial motion as pictured by invasive coronary angiography. Compared with the conventional finite element analysis of cardiovascular biomechanics using the estimated pulsatile pressure, the 4D-SWS approach can calculate the dynamic mechanical state of the superficial wall in vivo, which could be directly linked with plaque rupture or stent fracture. The validation of this approach using in silico models showed that the distribution and maximum values of superficial wall stress were similar to those calculated by conventional finite element analysis. The in vivo deformation was validated on 16 coronary arteries, from the comparison of centerlines predicted by the 4D-SWS approach against the actual centerlines reconstructed from angiograms at a randomly selected time-point, which demonstrated a good agreement of the centerline morphology between both approaches (scaling: 0.995 ± 0.018 and dissimilarity: 0.007 ± 0.014). The in silico vessel models with softer plaque and larger plaque burden presented more variation in mean lumen diameter and resulted in higher superficial wall stress. In more than half of the patients (n = 16), the maximum superficial wall stress was found at the proximal lesion shoulder. Additionally, in three patients who later suffered from acute coronary syndrome, the culprit plaque rupture sites co-localized with the site of highest superficial wall stress on their baseline angiography. These representative cases suggest that angiography-based superficial wall dynamics have the potential to identify coronary segments at high-risk of plaque rupture and fracture sites of implanted stents. Ongoing studies are focusing on identifying weak spots in coronary bypass grafts, and on exploring the biomechanical mechanisms of coronary arterial remodeling and aneurysm formation. Future developments involve integration of fast computational techniques to allow

Published
2021

5. Advances in IVUS/OCT and Future Clinical Perspective of Novel Hybrid Catheter System in Coronary Imaging

Author

Ono, M, Kawashima, H., Hara, H. (Hidetaka), Gao, C. (Cheng), Wang, R.T., Kogame, N. (Norihiro), Takahashi, K. (Kuniaki), Chichareon, P. (Ply), Modolo, R. (Rodrigo), Tomaniak, M., Wykrzykowska, J.J. (Joanna), Piek, J.J. (Jan), Mori, I., Courtney, B.K., Wijns, W, Sharif, F., Bourantas, C., Onuma, Y. (Yoshinobu), Serruys, P.W.J.C. (Patrick), Ono, M, Kawashima, H., Hara, H. (Hidetaka), Gao, C. (Cheng), Wang, R.T., Kogame, N. (Norihiro), Takahashi, K. (Kuniaki), Chichareon, P. (Ply), Modolo, R. (Rodrigo), Tomaniak, M., Wykrzykowska, J.J. (Joanna), Piek, J.J. (Jan), Mori, I., Courtney, B.K., Wijns, W, Sharif, F., Bourantas, C., Onuma, Y. (Yoshinobu), and Serruys, P.W.J.C. (Patrick)

Abstract

Intravascular ultrasound (IVUS) and optical coherence tomography (OCT) have been developed and improved as both diagnostic and guidance tools for interventional procedures over the past three decades. IVUS has a resolution of 100µm with a high tissue penetration and capability of assessing the entire structure of a coronary artery including the external elastic membrane, whereas OCT has a higher resolution of 10–20µm to assess endoluminal structures with a limited tissue penetration compared to IVUS. Recently, two companies, CONAVI and TERUMO, integrated IVUS and OCT into a single catheter system. With their inherent strength and limitations, the combined IVUS and OCT probes are complementary and work synergistically to enable a comprehensive depiction of coronary artery. In this review, we summarize the performance of the two intracoronary imaging modaliti

Published
2020
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6. Bioresorbable vascular scaffold radial expansion and conformation compared to a metallic platform: insights from in vitro expansion in a coronary artery lesion model

Author

Foin N., Lee R., Bourantas C., Mattesini A., Soh N., Lim J. E., Torii R., Ng J., Liang L. H., Caiazzo G., Fabris E., Kilic D., Onuma Y., Low A. F., Nijjer S., Sen S., Petraco R., Al Lamee R., Davies J. E., Di Mario C., Wong P., Serruys P. W., Kimura T., Foin, N., Lee, R., Bourantas, C., Mattesini, A., Soh, N., Lim, J. E., Torii, R., Ng, J., Liang, L. H., Caiazzo, G., Fabris, E., Kilic, D., Onuma, Y., Low, A. F., Nijjer, S., Sen, S., Petraco, R., Al Lamee, R., Davies, J. E., Di Mario, C., Wong, P., Serruys, P. W., Kimura, T., and Cardiology

Subjects
Bioresorbable vascular scaffold (BVS), Conformation, Post-dilatation, Coronary Disease, Finite Element Analysis, Humans, Hydrodynamics, Absorbable Implants, Blood Vessel Prosthesis, Drug-Eluting Stents, Tissue Scaffolds, medicine.medical_specialty, medicine.medical_treatment, 030204 cardiovascular system & hematology, Balloon inflation, Lesion, 03 medical and health sciences, Finite Element Analysi, 0302 clinical medicine, Optical coherence tomography, Absorbable Implant, In vivo, Blood vessel prosthesis, Internal medicine, Drug-Eluting Stent, medicine, 030212 general & internal medicine, Bioresorbable vascular scaffold, medicine.diagnostic_test, business.industry, Coronary artery lesion, Stent, Hydrodynamic, Blood Vessel Prosthesi, Cardiology, medicine.symptom, Cardiology and Cardiovascular Medicine, business, Human, Biomedical engineering
Abstract

Aims This study aimed to compare the acute expansion behaviour of a polymer-based bioresorbable scaffold and a second-generation metallic DES platform in a realistic coronary artery lesion model. Experimental mechanical data with conventional methods have so far shown little difference between metallic stents and currently available polymer-based bioresorbable scaffolds (BRS). Nevertheless, differences in acute results have been observed in clinical studies comparing BRS directly with metallic DES platforms. Methods and results We examined the expansion behaviour of the bioresorbable vascular scaffold (3.0×18 mm Absorb BVS; Abbott Vascular, Santa Clara, CA, USA) and a metallic DES (3.0×18 mm XIENCE Prime; Abbott Vascular) after expansion at 37°C using identical coronary artery stenosis models (in total 12 experiments were performed). Device expansion was compared during balloon inflation and after deflation using microscopy to allow assessment of plaque recoil. Minimal lumen diameter (MLD) and minimal lumen area (MLA) and stent eccentricity were quantified from optical coherence tomography (OCT) imaging at nominal diameter and after post-dilation at 18 atm. The MLA in the models with BVS deployed was 4.92±0.17 mm² while in the metallic DES it was 5.40±0.13 mm2 (p=0.02) at nominal pressure (NP), and 5.41±0.20 and 6.07±0.25 mm2 (p=0.02), respectively, after expansion at 18 atm. Stent eccentricity index at the MLA was 0.71±0.02 in BVS compared to 0.81±0.02 in the metal stent at NP (p=0.004), and 0.73±0.03 compared to 0.75±0.02 at 18 atm (p=0.39). Conclusions Results obtained in this in vitro lesion model were comparable to the results in randomised clinical trials comparing BVS and XIENCE stents in vivo. Such models may be useful in future BRS developments to predict their acute response in vivo in eccentric lesions.

Published
2016
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10. Quantitative myocardial perfusion in coronary artery disease: A perfusion mapping study

Author

Knott, KD, Camaioni, C, Ramasamy, A, Augusto, JA, Bhuva, AN, Xue, H, Manisty, C, Hughes, RK, Brown, LAE, Amersey, R, Bourantas, C, Kellman, P, Plein, S, and Moon, JC

Abstract

Background Cardiac MR stress perfusion remains a qualitative technique in clinical practice due to technical and postprocessing challenges. However, automated inline perfusion mapping now permits myocardial blood flow (MBF, ml/g/min) quantification on‐the‐fly without user input. Purpose To investigate the diagnostic performance of this novel technique in detecting occlusive coronary artery disease (CAD) in patients scheduled to undergo coronary angiography. Study Type Prospective, observational. Subjects Fifty patients with suspected CAD and 24 healthy volunteers. Field Strength 1.5T. Sequence "Dual" sequence multislice 2D saturation recovery. Assessment All patients underwent cardiac MR with perfusion mapping and invasive coronary angiography; the healthy volunteers had MR with perfusion mapping alone. Statistical Tests Comparison between numerical variables was performed using an independent t‐test. Receiver operator characteristic (ROC) curves were generated for transmyocardial, endocardial stress MBF, and myocardial perfusion reserve (MPR, the stress:rest MBF ratio) to diagnose severe (>70%) stenoses as measured by 3D quantitative coronary angiography (QCA). ROC curves were compared by the method of DeLong et al. Results Compared with volunteers, patients had lower stress MBF and MPR even in vessels with 70%), MBF and MPR decreased. To diagnose occlusive (>70%) CAD, endocardial and transmyocardial stress MBF were superior to MPR (area under the curve 0.92 [95% CI 0.86–0.97] vs. 0.90 [95% CI 0.84–0.95] and 0.80 [95% CI 0.72–0.87], respectively). An endocardial threshold of 1.31 ml/g/min provided a per‐coronary artery sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of 90%, 82%, 50%, and 98%, with a per‐patient diagnostic performance of 100%, 66%, 57%, and 100%, respectively. Data Conclusion Perfusion mapping can diagnose occlusive CAD with high accuracy and, in particular, high sensitivity and NPV make it a potential "rule‐out" test. Level of Evidence: 1 Technical Efficacy Stage: 2 J. Magn. Reson. Imaging 2019;50:756–762

Published
2019

11. Expert recommendations on the assessment of wall shear stress in human coronary arteries: existing methodologies, technical considerations, and clinical applications

Author

Gijsen, F, Katagiri, Y, Barlis, P, Bourantas, C, Collet, C, Coskun, U, Daemen, J, Dijkstra, J, Edelman, E, Evans, P, van der Heiden, K, Hose, R, Koo, B-K, Krams, R, Marsden, A, Migliavacca, F, Onuma, Y, Ooi, A, Poon, E, Samady, H, Stone, P, Takahashi, K, Tang, D, Thondapu, V, Tenekecioglu, E, Timmins, L, Torii, R, Wentzel, J, Serruys, P, Gijsen, F, Katagiri, Y, Barlis, P, Bourantas, C, Collet, C, Coskun, U, Daemen, J, Dijkstra, J, Edelman, E, Evans, P, van der Heiden, K, Hose, R, Koo, B-K, Krams, R, Marsden, A, Migliavacca, F, Onuma, Y, Ooi, A, Poon, E, Samady, H, Stone, P, Takahashi, K, Tang, D, Thondapu, V, Tenekecioglu, E, Timmins, L, Torii, R, Wentzel, J, and Serruys, P

Published
2019

12. Expert recommendations on the assessment of wall shear stress in human coronary arteries: existing methodologies, technical considerations, and clinical applications

Author

Gijsen, Frank, Katagiri, Y, Barlis, P, Bourantas, C, Collet, C, Coskun, U, Daemen, Joost, Dijkstra, J, Edelman, E, Evans, P, van der Heiden, Kim, Hose, R, Koo, BK, Krams, R, Marsden, A, Migliavacca, F, Onuma, Yoshinobu, Ooi, A, Poon, E, Samady, H, Stone, P, Takahashi, K, Tang, D, Thondapu, V, Tenekecioglu, E, Timmins, L, Torii, R, Wentzel, Jolanda, Serruys, PWJC (Patrick), Gijsen, Frank, Katagiri, Y, Barlis, P, Bourantas, C, Collet, C, Coskun, U, Daemen, Joost, Dijkstra, J, Edelman, E, Evans, P, van der Heiden, Kim, Hose, R, Koo, BK, Krams, R, Marsden, A, Migliavacca, F, Onuma, Yoshinobu, Ooi, A, Poon, E, Samady, H, Stone, P, Takahashi, K, Tang, D, Thondapu, V, Tenekecioglu, E, Timmins, L, Torii, R, Wentzel, Jolanda, and Serruys, PWJC (Patrick)

Published
2019

14. P869Predictive value of the endothelial shear stress distribution in three-dimensional quantitative coronary angiography models in detecting vulnerable plaques

Author

Zanchin, T, primary, Bourantas, C, additional, Torii, R, additional, Serruys, P W S, additional, Karagiannis, A, additional, Ramasamy, A, additional, Onuma, Y, additional, Mathur, A, additional, Baumbach, A, additional, Windecker, S, additional, Lansky, A, additional, Maehara, A, additional, Stone, P H, additional, Raeber, L, additional, and Stone, G W, additional

Published
2019
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16. Intracoronary optical coherence tomography: Clinical and research applications and intravascular imaging software overview

Author

Tenekecioglu, E., Albuquerque, F.N., Sotomi, Y., Zeng, Y.P., Suwannasom, P., Tateishi, H., Cavalcante, R., Ishibashi, Y., Nakatani, S., Abdelghani, M., Dijkstra, J., Bourantas, C., Collet, C., Karanasos, A., Radu, M., Wang, A., Muramatsu, T., Landmesser, U., Okamura, T., Regar, E., Raber, L., Guagliumi, G., Pyo, R.T., Onuma, Y., Serruys, P.W., Cardiology, Amsterdam Cardiovascular Sciences, Other departments, ACS - Heart failure & arrhythmias, ACS - Atherosclerosis & ischemic syndromes, University of Zurich, and Serruys, Patrick W

Subjects
ATH, Reproducibility of Results, 610 Medicine & health, PCI, Coronary Artery Disease, Atherosclerosis, Coronary Vessels, 2705 Cardiology and Cardiovascular Medicine, Plaque, Atherosclerotic, 10020 Clinic for Cardiac Surgery, Imaging, PCI - Percutaneous Coronary Intervention (PCI), ATH - Atherosclerosis, Percutaneous Coronary Intervention, Surgery, Computer-Assisted, IOCT, IOCT - Imaging, 2741 Radiology, Nuclear Medicine and Imaging, Humans, Optical Coherence Tomography, Tomography, Optical Coherence, Percutaneous Coronary Intervention (PCI)
Abstract

By providing valuable information about the coronary artery wall and lumen, intravascular imaging may aid in optimizing interventional procedure results and thereby could improve clinical outcomes following percutaneous coronary intervention (PCI). Intravascular optical coherence tomography (OCT) is a light-based technology with a tissue penetration of approximately 1 to 3 mm and provides near histological resolution. It has emerged as a technological breakthrough in intravascular imaging with multiple clinical and research applications. OCT provides detailed visualization of the vessel following PCI and provides accurate assessment of post-procedural stent performance including detection of edge dissection, stent struts apposition, tissue prolapse, and healing parameters. Additionally, it can provide accurate characterization of plaque morphology and provides key information to optimize post-procedural outcomes. This manuscript aims to review the current clinical and research applications of intracoronary OCT and summarize the analytic OCT imaging software packages currently available. © 2017 Wiley Periodicals, Inc.

Published
2017

18. P6496Advantages and limitations of the attenuation-compensated technique in assessing plaque and neointima morphology in optical coherence tomography

Author

Ramasamy, A, primary, Ng, J, additional, Foin, N, additional, Girard, M, additional, Dijkstra, J, additional, Zanchin, T, additional, Crake, T, additional, Torii, R, additional, Rakhit, R, additional, Serruys, P W, additional, Raber, L, additional, Baumbach, A, additional, Mathur, A, additional, and Bourantas, C V, additional

Published
2018
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19. P6405Implications of the local haemodynamic forces on plaque morphology: A serial intravascular ultrasound and optical coherence tomography analysis

Author

Ramasamy, A, primary, Bourantas, C V, additional, Sakellarios, A, additional, Karagiannis, A, additional, Zanchin, T, additional, Yamaji, K, additional, Taniwaki, M, additional, Heg, D, additional, Fotiadis, D I, additional, Baumbach, A, additional, Michalis, L K, additional, Serruys, P W, additional, Garcia-Garcia, H M, additional, Windecker, S, additional, and Raber, L, additional

Published
2018
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20. P2631Accuracy of optical coherence tomography in predicting functional significance of coronary stenosis determined by fractional flow reserve: a meta-analysis

Author

Ramasamy, A, primary, Chen, Y, additional, Zanchin, T, additional, Rathod, K, additional, Jones, D, additional, Parasa, R, additional, Zhang, Y J, additional, Amersey, R, additional, Westwood, M, additional, Ozkor, M, additional, Baumbach, A, additional, Mathur, A, additional, Serruys, P W, additional, Crake, T, additional, and Bourantas, C V, additional

Published
2018
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21. P1781An observational study assessing the value of computed tomography cardiac angiography (CTCA) in planning invasive angiographic procedures in patients with previous coronary artery bypass grafts (CABG)

Author

Castle, E V, primary, Rathod, K, additional, Treibel, T, additional, Davies, C, additional, Guttmann, O, additional, Curtis, M, additional, Knight, C, additional, Moon, J, additional, Smith, E, additional, Weerackody, R, additional, Bourantas, C, additional, Wragg, A, additional, Mathur, A, additional, Pugliese, F, additional, and Jones, D, additional

Published
2018
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22. Poster Session Saturday 14 December - AM: 14/12/2013 08:30-12:30 * Location: Poster area

Author

Muraru, D., Addetia, K., Veronesi, F., Corsi, C., Mor-Avi, V., Yamat, M., Weinert, L., Lang, R., Badano, L., Faita, F., Di Lascio, N., Bruno, R., Bianchini, E., Ghiadoni, L., Sicari, R., Gemignani, V., Angelis, A., Ageli, K., Ioakimidis, N., Chrysohoou, C., Agelakas, A., Felekos, I., Vaina, S., Aznaourides, K., Vlachopoulos, C., Stefanadis, C., Nemes, A., Szolnoky, G., Gavaller, H., Gonczy, A., Kemeny, L., Forster, T., Ramalho, A., Placido, R., Marta, L., Menezes, M., Magalhaes, A., Cortez Dias, N., Martins, S., Almeida, A., Pinto, F., Nunes Diogo, A., Botezatu, C.-D., Enache, R., Popescu, B., Nastase, O., Coman, M., Ghiorghiu, I., Calin, A., Rosca, M., Beladan, C., Ginghina, C., Grapsa, J., Cabrita, I., Durighel, G., O'regan, D., Dawson, D., Nihoyannopoulos, P., Pellicori, P., Kallvikbacka-Bennett, A., Zhang, J., Lukaschuk, E., Joseph, A., Bourantas, C., Loh, H., Bragadeesh, T., Clark, A., Cleland, J., Lomax, S., Putzu, P., Diercx, R., Parsons, S., Dicken, B., Vered, Z., Adirevitz, L., Dragu, R., Blatt, A., Karev, E., Malca, Y., Roytvarf, A., Marek, D., Sovova, E., Berkova, M., Cihalik, C., Taborsky, M., Lindqvist, P., Tossavainen, E., Soderberg, S., Gonzales, M., Gustavsson, S., Henein, M., Sonne, C., Bott-Fluegel, L., Hauck, S., Lesevic, H., Hadamitzky, M., Wolf, P., Kolb, C., Bandera, F., Pellegrino, M., Generati, G., Donghi, V., Alfonzetti, E., Castelvecchio, S., Menicanti, L., Guazzi, M., Buchyte, S., Rinkuniene, D., Jurkevicius, R., Smarz, K., Zaborska, B., Jaxa-Chamiec, T., Maciejewski, P., Budaj, A., Santoro, A., Federico Alvino, F., Giovanni Antonelli, G., Roberta Molle, R., Matteo Bertini, M., Stefano Lunghetti, S., Sergio Mondillo, S., Henri, C., Magne, J., Dulgheru, R., Laaraibi, S., Voilliot, D., Kou, S., Pierard, L., Lancellotti, P., Szulik, M., Stabryla-Deska, J., Kalinowski, M., Sliwinska, A., Szymala, M., Lenarczyk, R., Kalarus, Z., Kukulski, T., Yiangou, K., Azina, C., Yiangou, A., Ioannides, M., Chimonides, S., Baysal, S., Pirat, B., Okyay, K., Bal, U., Muderrisoglu, H., Popovic, D., Ostojic, M., Petrovic, M., Vujisic-Tesic, B., Arandjelovic, A., Petrovic, I., Banovic, M., Popovic, B., Vukcevic, V., Damjanovic, S., Velasco Del Castillo, S., Onaindia Gandarias, J., Arana Achaga, X., Laraudogoitia Zaldumbide, E., Rodriguez Sanchez, I., Cacicedo De Bobadilla, A., Romero Pereiro, A., Aguirre Larracoechea, U., Salinas, T., Subinas, A., Elzbieciak, M., Wita, K., Grabka, M., Chmurawa, J., Doruchowska, A., Turski, M., Filipecki, A., Wybraniec, M., Mizia-Stec, K., Varho, V., Karjalainen, P., Lehtinen, T., Airaksinen, J., Ylitalo, A., Kiviniemi, T., Gargiulo, P., Galderisi, M., D' Amore, C., Lo Iudice, F., Savarese, G., Casaretti, L., Pellegrino, A., Fabiani, I., La Mura, L., Perrone Filardi, P., Kim, J. Y., Chung, W., Yu, J., Choi, Y., Park, C., Youn, H., Lee, M., Nagy, A., Manouras, A., Gunyeli, E., Gustafsson, U., Shahgaldi, K., Winter, R., Johnsson, J., Zagatina, A., Krylova, L., Zhuravskaya, N., Vareldzyan, Y., Tyurina, T., Clitsenko, O., Khalifa, E. A., Ashour, Z., Elnagar, W., Jung, I., Seo, H., Lee, S., Lim, D., Mizariene, V., Verseckaite, R., Janenaite, J., Jonkaitiene, R., Sanchez Espino, A., Bonaque Gonzalez, J., Merchan Ortega, G., Bolivar Herrera, N., Ikuta, I., Macancela Quinones, J., Gomez Recio, M., Silva Fazendas Adame, P. R., Caldeira, D., Stuart, B., Almeida, S., Cruz, I., Ferreira, A., Freire, G., Lopes, L., Cotrim, C., Pereira, H., Mediratta, A., Moss, J., Nayak, H., Al Amri, I., Debonnaire, P., Van Der Kley, F., Schalij, M., Bax, J., Ajmone Marsan, N., Delgado, V., Schmidt, F. P., Gniewosz, T., Jabs, A., Munzel, T., Jansen, T., Kaempfner, D., Hink, U., Von Bardeleben, R., Jose, J., George, O., Joseph, G., Adawi, S., Najjar, R., Ahronson, D., Shiran, A., Van Riel, A., Boerlage - Van Dijk, K., De Bruin - Bon, H., Araki, M., Meregalli, P., Koch, K., Vis, M., Mulder, B., Baan, J., Bouma, B., Marciniak, A., Elton, D., Glover, K., Campbell, I., Sharma, R., Batalha, S., Lourenco, C., Oliveira Da Silva, C., Caballero, L., Garcia-Lara, J., Gonzalez-Carrillo, J., Oliva, M., Saura, D., Garcia-Navarro, M., Espinosa, M., Pinar, E., Valdes, M., De La Morena, G., Barreiro Perez, M., Lopez Perez, M., Roy, D., Brecker, S., Venkateshvaran, A., Dash, P. K., Sola, S., Barooah, B., Govind, S. C., Brodin, L. A., Saura Espin, D., Caballero Jimenez, L., Gonzalez Carrillo, J., Oliva Sandoval, M., Lopez Ruiz, M., Garcia Navarro, M., Espinosa Garcia, M., Valdes Chavarri, M., De La Morena Valenzuela, G., Gatti, G., Dell'angela, L., Pinamonti, B., Benussi, B., Sinagra, G., Pappalardo, A., Hernandez, V., Saavedra, J., Gonzalez, A., Iglesias, P., Civantos, S., Guijarro, G., Monereo, S., Ikeda, M., Toh, N., Oe, H., Tanabe, Y., Watanabe, N., Ito, H., Ciampi, Q., Cortigiani, L., Pratali, L., Rigo, F., Villari, B., Picano, E., Yoon, J., Sohn, J., Kim, Y., Chang, H., Hong, G., Kim, T., Ha, J., Choi, B., Rim, S., Choi, E., Tibazarwa, K., Sliwa, K., Wonkam, A., Mayosi, B., Oryshchyn, N., Ivaniv, Y., Pavlyk, S., Lourenco, M. R., Azevedo, O., Moutinho, J., Nogueira, I., Fernandes, M., Pereira, V., Quelhas, I., Lourenco, A., Sunbul, M., Tigen, K., Karaahmet, T., Dundar, C., Ozben, B., Guler, A., Cincin, A., Bulut, M., Sari, I., Basaran, Y., Baydar, O., Kadriye Kilickesmez, K., Ugur Coskun, U., Polat Canbolat, P., Veysel Oktay, V., Umit Yasar Sinan, U., Okay Abaci, O., Cuneyt Kocas, C., Sinan Uner, S., Serdar Kucukoglu, S., Zaroui, A., Mourali, M., Ben Said, R., Asmi, M., Aloui, H., Kaabachi, N., Mechmeche, R., Saberniak, J., Hasselberg, N., Borgquist, R., Platonov, P., Holst, A., Edvardsen, T., Haugaa, K., Eran, A., Yueksel, D., Er, F., Gassanov, N., Rosenkranz, S., Baldus, S., Guedelhoefer, H., Faust, M., Caglayan, E., Matveeva, N., Nartsissova, G., Chernjavskij, A., Ippolito, R., De Palma, D., Muscariello, R., Santoro, C., Raia, R., Schiano-Lomoriello, V., Gargiulo, F., Lipari, P., Bonapace, S., Zenari, L., Valbusa, F., Rossi, A., Lanzoni, L., Canali, G., Molon, G., Campopiano, E., Barbieri, E., Ikonomidis, I., Varoudi, M., Papadavid, E., Theodoropoulos, K., Papadakis, I., Pavlidis, G., Triantafyllidi, H., Anastasiou - Nana, M., Rigopoulos, D., Lekakis, J., Ozen, G., Durmus, E., Kivrak, T., Atas, H., Direskeneli, H., Stevanovic, A., Dekleva, M., Trajic, S., Paunovic, N., Simic, A., Khan, S., Mushemi-Blake, S., Jouhra, F., Dennes, W., Monaghan, M., Melikian, N., Shah, A., Maceira Gonzalez, A. M., Lopez-Lereu, M., Monmeneu, J., Igual, B., Estornell, J., Boraita, A., Kosmala, W., Rojek, A., Bialy, D., Mysiak, A., Przewlocka-Kosmala, M., Popescu, I., Mancas, S., Mornos, C., Serbescu, I., Ionescu, G., Ionac, A., Gaudron, P., Niemann, M., Herrmann, S., Hu, K., Liu, D., Wojciech, K., Frantz, S., Bijnens, B., Ertl, G., Weidemann, F., Cosin-Sales, J., Ruvira, J., Diago, J., Aguilar, J., Cruz, C., Pinho, T., Madureira, A., Lebreiro, A., Dias, C., Ramos, I., Silva Cardoso, J., Julia Maciel, M., De Meester, P., Van De Bruaene, A., Herijgers, P., Voigt, J.-U., Budts, W., Franzoso, F., Voser, E., Wohlmut, C., Kellenberger, C., Valsangiacomo Buechel, E., Carrero, C., Benger, J., Parcerisa, M., Falconi, M., Oberti, P., Granja, M., Cagide, A., Del Pasqua, A., Secinaro, A., Antonelli, G., Iacomino, M., Toscano, A., Chinali, M., Esposito, C., Carotti, A., Pongiglione, G., Rinelli, G., Youssef Moustafa, A., Al Murayeh, M., Al Masswary, A., Al Sheikh, K., Moselhy, M., Dardir, M., Deising, J., Butz, T., Suermeci, G., Liebeton, J., Wennemann, R., Tzikas, S., Van Bracht, M., Prull, M., Trappe, H.-J., Martin Hidalgo, M., Delgado Ortega, M., Ruiz Ortiz, M., Mesa Rubio, D., Carrasco Avalos, F., Seoane Garcia, T., Pan Alvarez-Ossorio, M., Lopez Aguilera, J., Puentes Chiachio, M., Suarez De Lezo Cruz Conde, J., Petrovic, M. T., Giga, V., Stepanovic, J., Tesic, M., Jovanovic, I., Djordjevic-Dikic, A., Piatkowski, R., Kochanowski, J., Scislo, P., Opolski, G., Vareldzhyan, Y., Bombardini, T., Gherardi, S., Leone, O., Michelotto, E., Ciccarone, A., Tarantino, N., Ostuni, V., Rubino, M., Genco, W., Santoro, G., Carretta, D., Romito, R., Colonna, P., Cameli, M., Lunghetti, S., Lisi, M., Curci, V., Cameli, P., Focardi, M., Favilli, R., Mondillo, S., Hoffmann, R., Barletta, G., Von Bardeleben, S., Kasprzak, J., Greis, C., Vanoverschelde, J., Becher, H., Machida, T., Izumo, M., Suzuki, K., Kaimijima, R., Mizukoshi, K., Manabe-Uematsu, M., Takai, M., Harada, T., Akashi, Y., Martin Garcia, A., Arribas-Jimenez, A., Cruz-Gonzalez, I., Nieto, F., Iscar, A., Merchan, S., Martin-Luengo, C., Brecht, A., Theres, L., Spethmann, S., Dreger, H., Baumann, G., Knebel, F., Jasaityte, R., Heyde, B., Rademakers, F., Claus, P., D'hooge, J., Lervik Nilsen, L. C., Lund, J., Brekke, B., Stoylen, A., Giraldeau, G., Duchateau, N., Gabrielli, L., Penela, D., Evertz, R., Mont, L., Brugada, J., Berruezo, A., Sitges, M., Kordybach, M., Kowalski, M., Hoffman, P., Pilichowska, E., Baran, J., Kulakowski, P., Wahi, S., Vollbon, W., Leano, R., Thomas, A., Bricknell, K., Holland, D., Napier, S., Stanton, T., Teferici, D., Qirko, S., Petrela, E., Dibra, A., Bajraktari, G., Bara, P., Sanchis Ruiz, L., Andrea, R., Falces, C., Perez-Villa, F., Sulemane, S., Panoulas, V., Bratsas, A., Tam, F., Abduch, M., Alencar, A., Coracin, F., Barban, A., Saboya, R., Dulley, F., Mathias, W., Vieira, M., Buccheri, S., Mangiafico, S., Arcidiacono, A., Bottari, V., Leggio, S., Tamburino, C., Monte, I. P., Spitzer, E., Beitzke, D., Kaneider, A., Pavo, N., Gottsauner-Wolf, M., Wolf, F., Loewe, C., Mushtaq, S., Andreini, D., Pontone, G., Bertella, E., Conte, E., Baggiano, A., Annoni, A., Cortinovis, S., Fiorentini, C., Pepi, M., Gustafsson, M., Alehagen, U., Dahlstrom, U., Johansson, P., Faden, G., Faggiano, P., Albertini, L., Reverberi, C., Gaibazzi, N., Taylor, R. J., Moody, W., Umar, F., Edwards, N., Townend, J., Steeds, R., Leyva, F., Mihaila, S., Piasentini, E., Peluso, D., Casablanca, S., Naso, P., Puma, L., Iliceto, S., Vinereanu, D., Ciciarello, F. L., Agati, L., Cimino, S., De Luca, L., Petronilli, V., Fedele, F., and Tsverava, M.

Subjects
medicine.medical_specialty, Bundle branch block, business.industry, Left bundle branch block, Speckle tracking echocardiography, General Medicine, 030204 cardiovascular system & hematology, medicine.disease, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, medicine.anatomical_structure, Radial function, Ventricle, Internal medicine, Cardiology, medicine, Radiology, Nuclear Medicine and imaging, In patient, Cardiology and Cardiovascular Medicine, business
Published
2013
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23. Left atrial function measured by cardiac magnetic resonance in patients with heart failure: clinical associations and prognostic value

Author

Muraru, D., Addetia, K., Veronesi, F., Corsi, C., Mor-Avi, V., Yamat, M., Weinert, L., Lang, R., Badano, L., Faita, F., Di Lascio, N., Bruno, R., Bianchini, E., Ghiadoni, L., Sicari, R., Gemignani, V., Angelis, A., Ageli, K., Ioakimidis, N., Chrysohoou, C., Agelakas, A., Felekos, I., Vaina, S., Aznaourides, K., Vlachopoulos, C., Stefanadis, C., Nemes, A., Szolnoky, G., Gavaller, H., Gonczy, A., Kemeny, L., Forster, T., Ramalho, A., Placido, R., Marta, L., Menezes, M., Magalhaes, A., Cortez Dias, N., Martins, S., Almeida, A., Pinto, F., Nunes Diogo, A., Botezatu, C.-D., Enache, R., Popescu, B., Nastase, O., Coman, M., Ghiorghiu, I., Calin, A., Rosca, M., Beladan, C., Ginghina, C., Grapsa, J., Cabrita, I., Durighel, G., O'regan, D., Dawson, D., Nihoyannopoulos, P., Pellicori, P., Kallvikbacka-Bennett, A., Zhang, J., Lukaschuk, E., Joseph, A., Bourantas, C., Loh, H., Bragadeesh, T., Clark, A., Cleland, J., Lomax, S., Putzu, P., Diercx, R., Parsons, S., Dicken, B., Vered, Z., Adirevitz, L., Dragu, R., Blatt, A., Karev, E., Malca, Y., Roytvarf, A., Marek, D., Sovova, E., Berkova, M., Cihalik, C., Taborsky, M., Lindqvist, P., Tossavainen, E., Soderberg, S., Gonzales, M., Gustavsson, S., Henein, M., Sonne, C., Bott-Fluegel, L., Hauck, S., Lesevic, H., Hadamitzky, M., Wolf, P., Kolb, C., Bandera, F., Pellegrino, M., Generati, G., Donghi, V., Alfonzetti, E., Castelvecchio, S., Menicanti, L., Guazzi, M., Buchyte, S., Rinkuniene, D., Jurkevicius, R., Smarz, K., Zaborska, B., Jaxa-Chamiec, T., Maciejewski, P., Budaj, A., Santoro, A., Federico Alvino, F., Giovanni Antonelli, G., Roberta Molle, R., Matteo Bertini, M., Stefano Lunghetti, S., Sergio Mondillo, S., Henri, C., Magne, J., Dulgheru, R., Laaraibi, S., Voilliot, D., Kou, S., Pierard, L., Lancellotti, P., Szulik, M., Stabryla-Deska, J., Kalinowski, M., Sliwinska, A., Szymala, M., Lenarczyk, R., Kalarus, Z., Kukulski, T., Yiangou, K., Azina, C., Yiangou, A., Ioannides, M., Chimonides, S., Baysal, S., Pirat, B., Okyay, K., Bal, U., Muderrisoglu, H., Popovic, D., Ostojic, M., Petrovic, M., Vujisic-Tesic, B., Arandjelovic, A., Petrovic, I., Banovic, M., Popovic, B., Vukcevic, V., Damjanovic, S., Velasco Del Castillo, S., Onaindia Gandarias, J., Arana Achaga, X., Laraudogoitia Zaldumbide, E., Rodriguez Sanchez, I., Cacicedo De Bobadilla, A., Romero Pereiro, A., Aguirre Larracoechea, U., Salinas, T., Subinas, A., Elzbieciak, M., Wita, K., Grabka, M., Chmurawa, J., Doruchowska, A., Turski, M., Filipecki, A., Wybraniec, M., Mizia-Stec, K., Varho, V., Karjalainen, P., Lehtinen, T., Airaksinen, J., Ylitalo, A., Kiviniemi, T., Gargiulo, P., Galderisi, M., D' Amore, C., Lo Iudice, F., Savarese, G., Casaretti, L., Pellegrino, A., Fabiani, I., La Mura, L., Perrone Filardi, P., Kim, J. Y., Chung, W., Yu, J., Choi, Y., Park, C., Youn, H., Lee, M., Nagy, A., Manouras, A., Gunyeli, E., Gustafsson, U., Shahgaldi, K., Winter, R., Johnsson, J., Zagatina, A., Krylova, L., Zhuravskaya, N., Vareldzyan, Y., Tyurina, T., Clitsenko, O., Khalifa, E. A., Ashour, Z., Elnagar, W., Jung, I., Seo, H., Lee, S., Lim, D., Mizariene, V., Verseckaite, R., Janenaite, J., Jonkaitiene, R., Sanchez Espino, A., Bonaque Gonzalez, J., Merchan Ortega, G., Bolivar Herrera, N., Ikuta, I., Macancela Quinones, J., Gomez Recio, M., Silva Fazendas Adame, P. R., Caldeira, D., Stuart, B., Almeida, S., Cruz, I., Ferreira, A., Freire, G., Lopes, L., Cotrim, C., Pereira, H., Mediratta, A., Moss, J., Nayak, H., Al Amri, I., Debonnaire, P., Van Der Kley, F., Schalij, M., Bax, J., Ajmone Marsan, N., Delgado, V., Schmidt, F. P., Gniewosz, T., Jabs, A., Munzel, T., Jansen, T., Kaempfner, D., Hink, U., Von Bardeleben, R., Jose, J., George, O., Joseph, G., Adawi, S., Najjar, R., Ahronson, D., Shiran, A., Van Riel, A., Boerlage - Van Dijk, K., De Bruin - Bon, H., Araki, M., Meregalli, P., Koch, K., Vis, M., Mulder, B., Baan, J., Bouma, B., Marciniak, A., Elton, D., Glover, K., Campbell, I., Sharma, R., Batalha, S., Lourenco, C., Oliveira Da Silva, C., Caballero, L., Garcia-Lara, J., Gonzalez-Carrillo, J., Oliva, M., Saura, D., Garcia-Navarro, M., Espinosa, M., Pinar, E., Valdes, M., De La Morena, G., Barreiro Perez, M., Lopez Perez, M., Roy, D., Brecker, S., Venkateshvaran, A., Dash, P. K., Sola, S., Barooah, B., Govind, S. C., Brodin, L. A., Saura Espin, D., Caballero Jimenez, L., Gonzalez Carrillo, J., Oliva Sandoval, M., Lopez Ruiz, M., Garcia Navarro, M., Espinosa Garcia, M., Valdes Chavarri, M., De La Morena Valenzuela, G., Gatti, G., Dell'angela, L., Pinamonti, B., Benussi, B., Sinagra, G., Pappalardo, A., Hernandez, V., Saavedra, J., Gonzalez, A., Iglesias, P., Civantos, S., Guijarro, G., Monereo, S., Ikeda, M., Toh, N., Oe, H., Tanabe, Y., Watanabe, N., Ito, H., Ciampi, Q., Cortigiani, L., Pratali, L., Rigo, F., Villari, B., Picano, E., Yoon, J., Sohn, J., Kim, Y., Chang, H., Hong, G., Kim, T., Ha, J., Choi, B., Rim, S., Choi, E., Tibazarwa, K., Sliwa, K., Wonkam, A., Mayosi, B., Oryshchyn, N., Ivaniv, Y., Pavlyk, S., Lourenco, M. R., Azevedo, O., Moutinho, J., Nogueira, I., Fernandes, M., Pereira, V., Quelhas, I., Lourenco, A., Sunbul, M., Tigen, K., Karaahmet, T., Dundar, C., Ozben, B., Guler, A., Cincin, A., Bulut, M., Sari, I., Basaran, Y., Baydar, O., Kadriye Kilickesmez, K., Ugur Coskun, U., Polat Canbolat, P., Veysel Oktay, V., Umit Yasar Sinan, U., Okay Abaci, O., Cuneyt Kocas, C., Sinan Uner, S., Serdar Kucukoglu, S., Zaroui, A., Mourali, M., Ben Said, R., Asmi, M., Aloui, H., Kaabachi, N., Mechmeche, R., Saberniak, J., Hasselberg, N., Borgquist, R., Platonov, P., Holst, A., Edvardsen, T., Haugaa, K., Eran, A., Yueksel, D., Er, F., Gassanov, N., Rosenkranz, S., Baldus, S., Guedelhoefer, H., Faust, M., Caglayan, E., Matveeva, N., Nartsissova, G., Chernjavskij, A., Ippolito, R., De Palma, D., Muscariello, R., Santoro, C., Raia, R., Schiano-Lomoriello, V., Gargiulo, F., Lipari, P., Bonapace, S., Zenari, L., Valbusa, F., Rossi, A., Lanzoni, L., Canali, G., Molon, G., Campopiano, E., Barbieri, E., Ikonomidis, I., Varoudi, M., Papadavid, E., Theodoropoulos, K., Papadakis, I., Pavlidis, G., Triantafyllidi, H., Anastasiou - Nana, M., Rigopoulos, D., Lekakis, J., Ozen, G., Durmus, E., Kivrak, T., Atas, H., Direskeneli, H., Stevanovic, A., Dekleva, M., Trajic, S., Paunovic, N., Simic, A., Khan, S., Mushemi-Blake, S., Jouhra, F., Dennes, W., Monaghan, M., Melikian, N., Shah, A., Maceira Gonzalez, A. M., Lopez-Lereu, M., Monmeneu, J., Igual, B., Estornell, J., Boraita, A., Kosmala, W., Rojek, A., Bialy, D., Mysiak, A., Przewlocka-Kosmala, M., Popescu, I., Mancas, S., Mornos, C., Serbescu, I., Ionescu, G., Ionac, A., Gaudron, P., Niemann, M., Herrmann, S., Hu, K., Liu, D., Wojciech, K., Frantz, S., Bijnens, B., Ertl, G., Weidemann, F., Cosin-Sales, J., Ruvira, J., Diago, J., Aguilar, J., Cruz, C., Pinho, T., Madureira, A., Lebreiro, A., Dias, C., Ramos, I., Silva Cardoso, J., Julia Maciel, M., De Meester, P., Van De Bruaene, A., Herijgers, P., Voigt, J.-U., Budts, W., Franzoso, F., Voser, E., Wohlmut, C., Kellenberger, C., Valsangiacomo Buechel, E., Carrero, C., Benger, J., Parcerisa, M., Falconi, M., Oberti, P., Granja, M., Cagide, A., Del Pasqua, A., Secinaro, A., Antonelli, G., Iacomino, M., Toscano, A., Chinali, M., Esposito, C., Carotti, A., Pongiglione, G., Rinelli, G., Youssef Moustafa, A., Al Murayeh, M., Al Masswary, A., Al Sheikh, K., Moselhy, M., Dardir, M., Deising, J., Butz, T., Suermeci, G., Liebeton, J., Wennemann, R., Tzikas, S., Van Bracht, M., Prull, M., Trappe, H.-J., Martin Hidalgo, M., Delgado Ortega, M., Ruiz Ortiz, M., Mesa Rubio, D., Carrasco Avalos, F., Seoane Garcia, T., Pan Alvarez-Ossorio, M., Lopez Aguilera, J., Puentes Chiachio, M., Suarez De Lezo Cruz Conde, J., Petrovic, M. T., Giga, V., Stepanovic, J., Tesic, M., Jovanovic, I., Djordjevic-Dikic, A., Piatkowski, R., Kochanowski, J., Scislo, P., Opolski, G., Vareldzhyan, Y., Bombardini, T., Gherardi, S., Leone, O., Michelotto, E., Ciccarone, A., Tarantino, N., Ostuni, V., Rubino, M., Genco, W., Santoro, G., Carretta, D., Romito, R., Colonna, P., Cameli, M., Lunghetti, S., Lisi, M., Curci, V., Cameli, P., Focardi, M., Favilli, R., Mondillo, S., Hoffmann, R., Barletta, G., Von Bardeleben, S., Kasprzak, J., Greis, C., Vanoverschelde, J., Becher, H., Machida, T., Izumo, M., Suzuki, K., Kaimijima, R., Mizukoshi, K., Manabe-Uematsu, M., Takai, M., Harada, T., Akashi, Y., Martin Garcia, A., Arribas-Jimenez, A., Cruz-Gonzalez, I., Nieto, F., Iscar, A., Merchan, S., Martin-Luengo, C., Brecht, A., Theres, L., Spethmann, S., Dreger, H., Baumann, G., Knebel, F., Jasaityte, R., Heyde, B., Rademakers, F., Claus, P., D'hooge, J., Lervik Nilsen, L. C., Lund, J., Brekke, B., Stoylen, A., Giraldeau, G., Duchateau, N., Gabrielli, L., Penela, D., Evertz, R., Mont, L., Brugada, J., Berruezo, A., Sitges, M., Kordybach, M., Kowalski, M., Hoffman, P., Pilichowska, E., Baran, J., Kulakowski, P., Wahi, S., Vollbon, W., Leano, R., Thomas, A., Bricknell, K., Holland, D., Napier, S., Stanton, T., Teferici, D., Qirko, S., Petrela, E., Dibra, A., Bajraktari, G., Bara, P., Sanchis Ruiz, L., Andrea, R., Falces, C., Perez-Villa, F., Sulemane, S., Panoulas, V., Bratsas, A., Tam, F., Abduch, M., Alencar, A., Coracin, F., Barban, A., Saboya, R., Dulley, F., Mathias, W., Vieira, M., Buccheri, S., Mangiafico, S., Arcidiacono, A., Bottari, V., Leggio, S., Tamburino, C., Monte, I. P., Spitzer, E., Beitzke, D., Kaneider, A., Pavo, N., Gottsauner-Wolf, M., Wolf, F., Loewe, C., Mushtaq, S., Andreini, D., Pontone, G., Bertella, E., Conte, E., Baggiano, A., Annoni, A., Cortinovis, S., Fiorentini, C., Pepi, M., Gustafsson, M., Alehagen, U., Dahlstrom, U., Johansson, P., Faden, G., Faggiano, P., Albertini, L., Reverberi, C., Gaibazzi, N., Taylor, R. J., Moody, W., Umar, F., Edwards, N., Townend, J., Steeds, R., Leyva, F., Mihaila, S., Piasentini, E., Peluso, D., Casablanca, S., Naso, P., Puma, L., Iliceto, S., Vinereanu, D., Ciciarello, F. L., Agati, L., Cimino, S., De Luca, L., Petronilli, V., Fedele, F., and Tsverava, M.

Published
2013
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28. Optimization of coronary optical coherence tomography imaging using the attenuation-compensated technique: a validation study

Author

Teo, Jing Chun, Foin, Nicolas, Otsuka, Fumiyuki, Bulluck, Heerajnarain, Fam, Jiang Ming, Wong, Philip, Low, Fatt Hoe, Leo, Hwa Liang, Mari, Jean-Martial, Joner, Michael, Girard, Michael J A, Virmani, Renu, Bezerra, HG., Costa, MA., Guagliumi, G., Rollins, AM., Simon, D., Gutiérrez-Chico, JL., Alegría-Barrero, E., Teijeiro-Mestre, R., Chan, PH., Tsujioka, H., de Silva, R., Otsuka, F., Joner, M., Prati, F., Virmani, R., Narula, J., Members, WC., Levine, GN., Bates, ER., Blankenship, JC., Bailey, SR., Bittl, JA., Mintz, G.S., Costa, Marco, Regar, E., Akasaka, T., Roleder, T., Jąkała, J., Kałuża, GL., Partyka, Ł., Proniewska, K., Pociask, E., Girard, MJA., Strouthidis, NG., Ethier, CR., Mari, JM., Park, SC., van der Lee, R., Foin, N., Wong, P.K., Mari, J-M., Nakano, M., Vorpahl, M., Taniwaki, M., Yazdani, SK., Finn, AV., Yahagi, K., Yamamoto, H., Ladich, ER., Girard, MJ., Ang, M., Chung, CW., Farook, M., Strouthidis, N., Mehta, JS., Nijjer, S., Sen, S., Petraco, R., Ghione, M., Liu, X., Kang, JU., Kolodgie, F.D., Burke, AP., Farb, A., Schwartz, S.M., Davis, HR., Kume, T., Kawamoto, T., Watanabe, N., Toyota, E., Neishi, Y., Rieber, J., Meissner, O., Babaryka, G., Reim, S., Oswald, M.E., Koenig, A.S., Tearney, G. J., Adriaenssens, T., Barlis, P., Yabushita, H., Bouma, BE., Houser, S. L., Aretz, HT., Jang, I-K., Schlendorf, KH., Guo, J., Sun, L., Chen, Y.D., Tian, F., Liu, HB., Chen, L., Kawasaki, M., Bressner, J. E., Nadkarni, S. K., MacNeill, BD., Jansen, CHP., Onthank, DC., Cuello, F., Botnar, RM., Wiethoff, AJ., Warley, A., von Birgelen, C., Hartmann, A. M., Kubo, T., Shite, J., Suzuki, T., Uemura, S., Yu, B., Habara, M., Nasu, K., Terashima, M., Kaneda, H., Yokota, D., Ko, E., Takarada, S., Imanishi, T., Tanimoto, T., Kitabata, H., Nakamura, N., Hattori, K., Ozaki, Y., Ismail, TF., Okumura, M., Naruse, H., Kan, S., Nishio, R., Shinke, T., Otake, H., Nakagawa, M., Nagoshi, R., Inoue, T., Sinclair, H.D., Bourantas, C., Bagnall, A., Kunadian, V., van Soest, G., Goderie, T., Koljenović, S., Leenders, GL. van, Gonzalo, N., Xu, C., Schmitt, JM., Carlier, SG., van der Meer, FJ, Faber, D.J., Sassoon, DMB., Aalders, M.C., Pasterkamp, G., Leeuwen, TG. van, Knuttel, A., Yadlowsky, M., Eckhaus, MA., Karamata, B., Laubscher, M., Leutenegger, M., Bourquin, S., Lasser, T., Lambelet, P., Vermeer, K.A., Mo, J., Weda, J.J.A., Lemij, H.G., Boer, JF. de, Biophotonics and Medical Imaging, LaserLaB - Biophotonics and Microscopy, Application des ultrasons à la thérapie (LabTAU), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre Léon Bérard [Lyon]-Institut National de la Santé et de la Recherche Médicale (INSERM), Géopôle du Pacifique Sud (GePaSUD), Université de la Polynésie Française (UPF), Department of Urology Université de Montréal, and National University of Singapore (NUS)

Subjects
Male, STATIN THERAPY, genetic structures, [SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging, Coronary Artery Disease, 030204 cardiovascular system & hematology, medicine.disease_cause, Severity of Illness Index, 01 natural sciences, Cohort Studies, 0302 clinical medicine, Cause of Death, Intravascular ultrasound, Image Processing, Computer-Assisted, Contrast (vision), Prospective Studies, media_common, medicine.diagnostic_test, General Medicine, Middle Aged, INTEGRATED BACKSCATTER-IVUS, Female, Tomography, Radiology, Cardiology and Cardiovascular Medicine, Tomography, Optical Coherence, medicine.medical_specialty, IMAGES, media_common.quotation_subject, Image processing, Risk Assessment, Sensitivity and Specificity, CLASSIFICATION, 010309 optics, 03 medical and health sciences, ENHANCEMENT, VULNERABLE PLAQUE, Optical coherence tomography, SDG 3 - Good Health and Well-being, 0103 physical sciences, INTRAVASCULAR ULTRASOUND, medicine, Humans, DIAGNOSTIC-ACCURACY, Radiology, Nuclear Medicine and imaging, ADAPTIVE COMPENSATION, Ultrasonography, Interventional, Aged, business.industry, Attenuation, Survival Analysis, Vulnerable plaque, OCT, Nuclear medicine, business, Kappa
Abstract

International audience; Aim To optimize conventional coronary optical coherence tomography (OCT) images using the attenuation-compensated technique to improve identification of plaques and the external elastic lamina (EEL) contourMethods and results The attenuation-compensated technique was optimized via manipulating contrast exponent C, and compression exponent N, to achieve an optimal contrast and signal-to-noise ratio (SNR). This was applied to 60 human coronary lesions (38 native and 22 stented) ex vivo conventional coronary OCT images acquired from heart autopsies of 10 patients and matching histology was available as reference. Three independent reviewers assessed the conventional and attenuation-compensated OCT images blindly for plaque characteristics and EEL detection. Conventional OCT and compensated OCT assessment were compared against histology. Using an optimized algorithm, the attenuation-compensated OCT images had a 2-fold improvement in contrast between different tissues in both stented and non-stented epicardial coronaries (P < 0.05). Overall sensitivity and specificity for plaque classification increased from 84 to 89% and from 92 to 94%, respectively, with substantial agreement among the three reviewers (Fleiss' Kappa k, 0.72 and 0.71, respectively). Furthermore, operators were 2.5 times more likely to identify the EEL contour in the attenuation-compensated OCT images (k = 0.72) than in the conventional OCT images (k = 0.36)Conclusion The attenuation-compensated technique can be retrospectively applied to conventional OCT images and improves the detection of plaque characteristics and the EEL contour. This approach could complement conventional OCT imaging in the evaluation of plaque characteristics and quantify plaque burden in the clinical setting.

Published
2016
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30. The additional value of patient-reported health status in predicting 1-year mortality after invasive coronary procedures: a report from the Euro Heart Survey on Coronary Revascularisation

Author

Lenzen M. J., Scholte Op Reimer W. J. M., Pedersen S. S., Boersma E., Maier W., Widimsky P., Simoons M. L., Mercado N. F., Wijns W., Bertrand M., Meier B., Sechtem U., Sergeant P., Stahle E., Unger F., Manini M., Bramley C., Laforest V., Taylor C., Del Gaiso S., Huber K., De Backer G., Sirakova V., Cerbak R., Thayssen P., Lehto S., Blanc J. -J., Delahaye F., Kobulia B., Zeymer U., Cokkinos D., Karlocai K., Graham I., Shelley E., Behar S., Maggioni A., Grabauskiene V., Deckers J., Asmussen I., Stepinska J., Goncalves L., Mareev V., Riecansky I., Kenda M. F., Alonso A., Lopez-Sendon J. L., Rosengren A., Buser P., Okay T., Sychov O., Fox K., Wood D., Crijns H., McGregor K., Mulder B., Priori S., Ryden L., Tavazzi L., Vahanian A., Vardas P., Sarkisyan K., Glogar H. D., Frick M., Pachinger O., Zwick R., Vrints C., Van Hertbruggen E., Vercammen M., Sysmans T., Schroeder E., Domange J., De Pril H., De Vriese J., Van Hecke T., Legrand V., Gillon M. -F., Richardy M., Doneux P., Petrov I., Jorgova J., Starcevic B., Eeckhout E., Berger A., Prudent V., Camenzind E., Masson N., Zambartas C., Kleanthous H., Stellova B., Aschermann M., Simek S., Kautzner J., Karmazin V., Svab P., Indrak J., Branny M., Hladilova K., Kala P., Cappelen H., Jensen L. O., Gitt A., Gehrke K., am Rhein L., Erbel R., Gutersohn A., Eggebrecht H., Al Khani M., Rosenberger A., Vogelsberg H., Klepzig H., Schmidt A., Silber S., Mau B., Leuner C., Czyborra K., Reuschling C., Muno E., Nauheim B., Kleber F., Rux S., Saad A., Elabady M., Beiras A. C., Fernandez J. S., del Arno F. N., Romo A. I., Fernandez J. M. C., Mayoreal A. R., Rebanal F. J. R., de la Borbolla M. G., Chaparro M., Brotons C., Miralda C. P., Vila i Perez S. I., Moris C., Aviles F. F., de la Fuente Galan L., Vinuela P. T., de Torres F. M., Mora J., Rodriguez I. S., Bustamante I. P., Fernandez P. L. S., Torrent J. L. D., Diez Gil J. L., Perpinan J., Motilla V. P., Juango M. S. A., Berjon-Reyero J., Moreno R. M., Guerrero J. C. F., Savolainen K., Syvanne M., Cohen-Solal A., Oboa A. -S., Bassand J. P., Espinosa D. P., Jouet V., Cedex B., Montalescot G., Gallois V., Daubert J. C., Clerc J. M., Machecourt J., Cottin Y., Walker D., Holland F., Prosser J., Muir L., Barber K., Cleland J. G. F., Cook J., Chapichadze Z., Christos I. S. A., Tsiavou N., Chrysohoou C., Manginas A., Terrovitis J., Kanakakis J., Vavuranakis M., Drakos S., Farmakis T., Samara C., Papakosta C., Bourantas C., Michalis L. K., Christos M., Foussas S., Adamopoulou E., Vardas P. E., Marketou M., Alotti N., Basa A. M., Vigh A., Preda I., Csoti E., Keltai M., Kerkovits G., Hendler A., Blatt A., Yakov B., Beyar R., Shefer A., Halon D., Bentzvi M., Avramovitch N., Bakst A., Saba K., Cafri C., Grosbard A., Sheva B., Margolis B., Suleiman K., Banai S., Meerkin D., Mosseri M., Guita P., Jabara R., Jafari J., Shitrit D. B., Ghasan Salameh, Brezins M., van den Akker-Berman L., Guetta V., Hashomer T., Rozenman Y., Biagini A., Berti S., Ferrero M., Colombo A., Roccaforte R., Milici C., Scarpino L., Salvi A., Desideri A., Sabbadin D., Veneto C., Galassi A., Giuffrida G., Rognoni A., Vassanelli C., Paffoni P., Cioppa A., Rubino P., de Carlo M., Petronio A. S., Naccarella F., Saia F., Marzocchi A., Maranga S. S., Presbitero P., Valsecchi F., Piscione F., Esposito G., Santini N. M., Tubaro M., Erglis A., Narbute I., Kavoliuniene A., Zaliunas R., Navickas R., Luckute D., Subkovas E., Wagner D., Vermeer F., Lousberg A., Fransen H., Breeman A., Tebbe H., De Boer M. J., van der Wal M., Vos J., Leenders C. M., Veerhoek M. J., Jansen C., Bijl M., Koppelaar C., den Linden V., Brons R., Widdershofen J. W. M. G., Broers H., Kontny F., Jonzon M., Wodniecki J., Tomasik A., Trusz-Gluza M., Nowak S., Ruzyllo W., Deptuch T., Marques J., Matias F., Madeira H., Oliveira J., Sargento L., Ionac A., Dragulescu I. S., Mut-Vitcu B., Maximov D., Dorobantu M., Apetrei E., Niculescu R., Petrescu V., Bucsa A., Deleanu D., Bucharest, Benedek I. S., Hintea T., Aronov D., Tikhomirova E., Kranjec I., Prokselj K., Kanic V., Sepetoglu A., Aytekin S., Aytekin V., Catakoglu A. B., Parlar H., Tufekcioglu S., Ozyedek Z., Baltali M., Kiziltan D., Vukovic M., Neskovic A. N., Cardiology, Lenzen, M. J., Scholte Op Reimer, W. J. M., Pedersen, S. S., Boersma, E., Maier, W., Widimsky, P., Simoons, M. L., Mercado, N. F., Wijns, W., Bertrand, M., Meier, B., Sechtem, U., Sergeant, P., Stahle, E., Unger, F., Manini, M., Bramley, C., Laforest, V., Taylor, C., Del Gaiso, S., Huber, K., De Backer, G., Sirakova, V., Cerbak, R., Thayssen, P., Lehto, S., Blanc, J. -J., Delahaye, F., Kobulia, B., Zeymer, U., Cokkinos, D., Karlocai, K., Graham, I., Shelley, E., Behar, S., Maggioni, A., Grabauskiene, V., Deckers, J., Asmussen, I., Stepinska, J., Goncalves, L., Mareev, V., Riecansky, I., Kenda, M. F., Alonso, A., Lopez-Sendon, J. L., Rosengren, A., Buser, P., Okay, T., Sychov, O., Fox, K., Wood, D., Crijns, H., Mcgregor, K., Mulder, B., Priori, S., Ryden, L., Tavazzi, L., Vahanian, A., Vardas, P., Sarkisyan, K., Glogar, H. D., Frick, M., Pachinger, O., Zwick, R., Vrints, C., Van Hertbruggen, E., Vercammen, M., Sysmans, T., Schroeder, E., Domange, J., De Pril, H., De Vriese, J., Van Hecke, T., Legrand, V., Gillon, M. -F., Richardy, M., Doneux, P., Petrov, I., Jorgova, J., Starcevic, B., Eeckhout, E., Berger, A., Prudent, V., Camenzind, E., Masson, N., Zambartas, C., Kleanthous, H., Stellova, B., Aschermann, M., Simek, S., Kautzner, J., Karmazin, V., Svab, P., Indrak, J., Branny, M., Hladilova, K., Kala, P., Cappelen, H., Jensen, L. O., Gitt, A., Gehrke, K., am Rhein, L., Erbel, R., Gutersohn, A., Eggebrecht, H., Al Khani, M., Rosenberger, A., Vogelsberg, H., Klepzig, H., Schmidt, A., Silber, S., Mau, B., Leuner, C., Czyborra, K., Reuschling, C., Muno, E., Nauheim, B., Kleber, F., Rux, S., Saad, A., Elabady, M., Beiras, A. C., Fernandez, J. S., del Arno, F. N., Romo, A. I., Fernandez, J. M. C., Mayoreal, A. R., Rebanal, F. J. R., de la Borbolla, M. G., Chaparro, M., Brotons, C., Miralda, C. P., Vila i Perez, S. I., Moris, C., Aviles, F. F., de la Fuente Galan, L., Vinuela, P. T., de Torres, F. M., Mora, J., Rodriguez, I. S., Bustamante, I. P., Fernandez, P. L. S., Torrent, J. L. D., Diez Gil, J. L., Perpinan, J., Motilla, V. P., Juango, M. S. A., Berjon-Reyero, J., Moreno, R. M., Guerrero, J. C. F., Savolainen, K., Syvanne, M., Cohen-Solal, A., Oboa, A. -S., Bassand, J. P., Espinosa, D. P., Jouet, V., Cedex, B., Montalescot, G., Gallois, V., Daubert, J. C., Clerc, J. M., Machecourt, J., Cottin, Y., Walker, D., Holland, F., Prosser, J., Muir, L., Barber, K., Cleland, J. G. F., Cook, J., Chapichadze, Z., Christos, I. S. A., Tsiavou, N., Chrysohoou, C., Manginas, A., Terrovitis, J., Kanakakis, J., Vavuranakis, M., Drakos, S., Farmakis, T., Samara, C., Papakosta, C., Bourantas, C., Michalis, L. K., Christos, M., Foussas, S., Adamopoulou, E., Vardas, P. E., Marketou, M., Alotti, N., Basa, A. M., Vigh, A., Preda, I., Csoti, E., Keltai, M., Kerkovits, G., Hendler, A., Blatt, A., Yakov, B., Beyar, R., Shefer, A., Halon, D., Bentzvi, M., Avramovitch, N., Bakst, A., Saba, K., Cafri, C., Grosbard, A., Sheva, B., Margolis, B., Suleiman, K., Banai, S., Meerkin, D., Mosseri, M., Guita, P., Jabara, R., Jafari, J., Shitrit, D. B., Ghasan, Salameh, Brezins, M., van den Akker-Berman, L., Guetta, V., Hashomer, T., Rozenman, Y., Biagini, A., Berti, S., Ferrero, M., Colombo, A., Roccaforte, R., Milici, C., Scarpino, L., Salvi, A., Desideri, A., Sabbadin, D., Veneto, C., Galassi, A., Giuffrida, G., Rognoni, A., Vassanelli, C., Paffoni, P., Cioppa, A., Rubino, P., de Carlo, M., Petronio, A. S., Naccarella, F., Saia, F., Marzocchi, A., Maranga, S. S., Presbitero, P., Valsecchi, F., Piscione, F., Esposito, G., Santini, N. M., Tubaro, M., Erglis, A., Narbute, I., Kavoliuniene, A., Zaliunas, R., Navickas, R., Luckute, D., Subkovas, E., Wagner, D., Vermeer, F., Lousberg, A., Fransen, H., Breeman, A., Tebbe, H., De Boer, M. J., van der Wal, M., Vos, J., Leenders, C. M., Veerhoek, M. J., Jansen, C., Bijl, M., Koppelaar, C., den Linden, V., Brons, R., Widdershofen, J. W. M. G., Broers, H., Kontny, F., Jonzon, M., Wodniecki, J., Tomasik, A., Trusz-Gluza, M., Nowak, S., Ruzyllo, W., Deptuch, T., Marques, J., Matias, F., Madeira, H., Oliveira, J., Sargento, L., Ionac, A., Dragulescu, I. S., Mut-Vitcu, B., Maximov, D., Dorobantu, M., Apetrei, E., Niculescu, R., Petrescu, V., Bucsa, A., Deleanu, D., Bucharest, Benedek, I. S., Hintea, T., Aronov, D., Tikhomirova, E., Kranjec, I., Prokselj, K., Kanic, V., Sepetoglu, A., Aytekin, S., Aytekin, V., Catakoglu, A. B., Parlar, H., Tufekcioglu, S., Ozyedek, Z., Baltali, M., Kiziltan, D., Vukovic, M., and Neskovic, A. N.

Subjects
Male, medicine.medical_specialty, Epidemiology, medicine.medical_treatment, Health Status, Coronary Artery Disease, Revascularization, Coronary artery disease, Cohort Studies, Risk Factors, Surveys and Questionnaires, medicine, Myocardial Revascularization, Surveys and Questionnaire, Humans, Prospective Studies, Prospective cohort study, Aged, business.industry, Risk Factor, Mortality rate, Confounding, Middle Aged, medicine.disease, Surgery, Europe, Prospective Studie, Treatment Outcome, Emergency medicine, Population study, Female, Cohort Studie, Cardiology and Cardiovascular Medicine, business, Human, Cohort study
Abstract

Objective: Self-perceived health status may be helpful in identifying patients at high risk for adverse outcomes. The Euro Heart Survey on Coronary Revascularization (EHS-CR) provided an opportunity to explore whether impaired health status was a predictor of 1-year mortality in patients with coronary artery disease (CAD) undergoing angiographic procedures. Methods: Data from the EHS-CR that included 5619 patients from 31 member countries of the European Society of Cardiology were used. Inclusion criteria for the current study were completion of a self-report measure of health status, the EuroQol Questionnaire (EQ-5D) at discharge and information on 1-year follow-up, resulting in a study population of 3786 patients. Results: The 1-year mortality was 3.2% (n = 120). Survivors reported fewer problems on the five dimensions of the EQ-5D as compared with non-survivors. A broad range of potential confounders were adjusted for, which reached a p

Published
2006

31. Patients enrolled in coronary intervention trials are not representative of patients in clinical practice: results from the Euro Heart Survey on Coronary Revascularization

Author

Hordijk-Trion M., Lenzen M., Wijns W., De Jaegere P., Simoons M. L., Scholte Op Reimer W. J. M., Bertrand M. E., Mercado N., Boersma E., Maier W., Meier B., Moris C., Piscione F., Sechtem U., Sergeant P., Stahle E., Vos J., Widimsky P., Unger F., Manini M., Bramley C., Laforest V., Taylor C., Del Gaiso S., Huber K., De Backer G., Sirakova V., Cerbak R., Thayssen P., Lehto S., Blanc J. -J., Delahaye F., Kobulia B., Zeymer U., Cokkinos D., Karlocai K., Graham I., Shelley E., Behar S., Maggioni A., Grabauskiene V., Deckers J., Asmussen I., Stepinska J., Goncalves L., Mareev V., Riecansky I., Kenda M. F., Alonso A., Lopez-Sendon J. L., Rosengren A., Buser P., Okay T., Sychov O., Fox K., Wood D., Crijns H., McGregor K., Mulder B., Priori S., Ryden L., Tavazzi L., Vahanian A., Vardas P., Sarkisyan K., Glogar H. D., Frick M., Pachinger O., Zwick R., Vrints C., Van Hertbruggen E., Vercammen M., Sysmans T., Schroeder E., Domange J., De Pril H., De Vriese J., Van Hecke T., Legrand V., Gillon M. -F., Richardy M., Doneux P., Petrov I., Jorgova J., Starcevic B., Eeckhout E., Berger A., Prudent V., Camenzind E., Masson N., Zambartas C., Kleanthous H., Stellova B., Aschermann M., Simek S., Kautzner J., Karmazin V., Svab P., Indrak J., Branny M., Hladilova K., Kala P., Cappelen H., Jensen L. O., Gitt A., Gehrke K., am Rhein L., Erbel R., Gutersohn A., Eggebrecht H., Al Khani M., Rosenberger A., Vogelsberg H., Klepzig H., Schmidt A., Silber S., Mau B., Leuner C., Czyborra K., Reuschling C., Muno E., Nauheim B., Kleber F., Rux S., Saad A., Elabady M., Beiras A. C., Fernandez J. S., del Arno F. N., Romo A. I., Fernandez J. M. C., Mayoreal A. R., Rebanal F. J. R., de la Borbolla M. G., Chaparro M., Brotons C., Miralda C. P., Vila i Perez S. I., Aviles F. F., de la Fuente Galan L., Vinuela P. T., de Torres F. M., Mora J., Rodriguez I. S., Bustamante I. P., Fernandez P. L. S., Torrent J. L. D., Gil J. L. D., Perpinan J., Motilla V. P., Juango M. S. A., Berjon-Reyero J., Moreno R. M., Guerrero J. C. F., Savolainen K., Syvanne M., Cohen-Solal A., Oboa A. -S., Bassand J. P., Espinosa D. P., Jouet V., Cedex B., Montalescot G., Gallois V., Daubert J. C., Clerc J. M., Machecourt J., Cottin Y., Walker D., Holland F., Prosser J., Muir L., Barber K., Cleland J. G. F., Cook J., Chapichadze Z., Christos I. S. A., Tsiavou N., Chrysohoou C., Manginas A., Terrovitis J., Kanakakis J., Vavuranakis M., Drakos S., Farmakis T., Samara C., Papakosta C., Bourantas C., Michalis L. K., Christos M., Foussas S., Adamopoulou E., Marketou M., Alotti N., Basa A. M., Vigh A., Preda I., Csoti E., Keltai M., Kerkovits G., Hendler A., Blatt A., Yakov B., Beyar R., Shefer A., Halon D., Bentzvi M., Avramovitch N., Bakst A., Saba K., Cafri C., Grosbard A., Sheva B., Margolis B., Suleiman K., Banai S., Meerkin D., Mosseri M., Guita P., Jabara R., Jafari J., Shitrit D. B., Ghasan D., Salameh D., Brezins M., van den Akker-Berman L., Guetta V., Hashomer T., Rozenman Y., Biagini A., Berti S., Ferrero M., Colombo A., Roccaforte R., Milici C., Scarpino L., Salvi A., Desideri A., Sabbadin D., Veneto C., Galassi A., Giuffrida G., Rognoni A., Vassanelli C., Paffoni P., Cioppa A., Rubino P., de Carlo M., Petronio A. S., Naccarella F., Saia F., Marzocchi A., Maranga S. S., Presbitero P., Valsecchi F., Esposito G., Santini N. M., Tubaro M., Erglis A., Narbute I., Kavoliuniene A., Zaliunas R., Navickas R., Luckute D., Subkovas E., Wagner D., Vermeer F., Lousberg A., Fransen H., Breeman A., Tebbe H., De Boer M. J., van der Wal M., Leenders C. M., Veerhoek M. J., Jansen C., Bijl M., Koppelaar C., den Linden V., Brons R., Widdershofen J. W. M. G., Broers H., Kontny F., Jonzon M., Wodniecki J., Tomasik A., Trusz-Gluza M., Nowak S., Ruzyllo W., Deptuch T., Marques J., Matias F., Madeira H., Oliveira J., Sargento L., Ionac A., Dragulescu I. S., Mut-Vitcu B., Maximov D., Dorobantu M., Apetrei E., Niculescu R., Petrescu V., Bucsa A., Deleanu D., Bucharest, Benedek I. S., Hintea T., Aronov D., Tikhomirova E., Kranjec I., Prokselj K., Kanic V., Sepetoglu A., Aytekin S., Aytekin V., Catakoglu A. B., Parlar H., Tufekcioglu S., Ozyedek Z., Baltali M., Kiziltan, Vukovic M., Neskovic A. N., Cardiology, Hordijk-Trion, M., Lenzen, M., Wijns, W., De Jaegere, P., Simoons, M. L., Scholte Op Reimer, W. J. M., Bertrand, M. E., Mercado, N., Boersma, E., Maier, W., Meier, B., Moris, C., Piscione, F., Sechtem, U., Sergeant, P., Stahle, E., Vos, J., Widimsky, P., Unger, F., Manini, M., Bramley, C., Laforest, V., Taylor, C., Del Gaiso, S., Huber, K., De Backer, G., Sirakova, V., Cerbak, R., Thayssen, P., Lehto, S., Blanc, J. -J., Delahaye, F., Kobulia, B., Zeymer, U., Cokkinos, D., Karlocai, K., Graham, I., Shelley, E., Behar, S., Maggioni, A., Grabauskiene, V., Deckers, J., Asmussen, I., Stepinska, J., Goncalves, L., Mareev, V., Riecansky, I., Kenda, M. F., Alonso, A., Lopez-Sendon, J. L., Rosengren, A., Buser, P., Okay, T., Sychov, O., Fox, K., Wood, D., Crijns, H., Mcgregor, K., Mulder, B., Priori, S., Ryden, L., Tavazzi, L., Vahanian, A., Vardas, P., Sarkisyan, K., Glogar, H. D., Frick, M., Pachinger, O., Zwick, R., Vrints, C., Van Hertbruggen, E., Vercammen, M., Sysmans, T., Schroeder, E., Domange, J., De Pril, H., De Vriese, J., Van Hecke, T., Legrand, V., Gillon, M. -F., Richardy, M., Doneux, P., Petrov, I., Jorgova, J., Starcevic, B., Eeckhout, E., Berger, A., Prudent, V., Camenzind, E., Masson, N., Zambartas, C., Kleanthous, H., Stellova, B., Aschermann, M., Simek, S., Kautzner, J., Karmazin, V., Svab, P., Indrak, J., Branny, M., Hladilova, K., Kala, P., Cappelen, H., Jensen, L. O., Gitt, A., Gehrke, K., am Rhein, L., Erbel, R., Gutersohn, A., Eggebrecht, H., Al Khani, M., Rosenberger, A., Vogelsberg, H., Klepzig, H., Schmidt, A., Silber, S., Mau, B., Leuner, C., Czyborra, K., Reuschling, C., Muno, E., Nauheim, B., Kleber, F., Rux, S., Saad, A., Elabady, M., Beiras, A. C., Fernandez, J. S., del Arno, F. N., Romo, A. I., Fernandez, J. M. C., Mayoreal, A. R., Rebanal, F. J. R., de la Borbolla, M. G., Chaparro, M., Brotons, C., Miralda, C. P., Vila i Perez, S. I., Aviles, F. F., de la Fuente Galan, L., Vinuela, P. T., de Torres, F. M., Mora, J., Rodriguez, I. S., Bustamante, I. P., Fernandez, P. L. S., Torrent, J. L. D., Gil, J. L. D., Perpinan, J., Motilla, V. P., Juango, M. S. A., Berjon-Reyero, J., Moreno, R. M., Guerrero, J. C. F., Savolainen, K., Syvanne, M., Cohen-Solal, A., Oboa, A. -S., Bassand, J. P., Espinosa, D. P., Jouet, V., Cedex, B., Montalescot, G., Gallois, V., Daubert, J. C., Clerc, J. M., Machecourt, J., Cottin, Y., Walker, D., Holland, F., Prosser, J., Muir, L., Barber, K., Cleland, J. G. F., Cook, J., Chapichadze, Z., Christos, I. S. A., Tsiavou, N., Chrysohoou, C., Manginas, A., Terrovitis, J., Kanakakis, J., Vavuranakis, M., Drakos, S., Farmakis, T., Samara, C., Papakosta, C., Bourantas, C., Michalis, L. K., Christos, M., Foussas, S., Adamopoulou, E., Marketou, M., Alotti, N., Basa, A. M., Vigh, A., Preda, I., Csoti, E., Keltai, M., Kerkovits, G., Hendler, A., Blatt, A., Yakov, B., Beyar, R., Shefer, A., Halon, D., Bentzvi, M., Avramovitch, N., Bakst, A., Saba, K., Cafri, C., Grosbard, A., Sheva, B., Margolis, B., Suleiman, K., Banai, S., Meerkin, D., Mosseri, M., Guita, P., Jabara, R., Jafari, J., Shitrit, D. B., Ghasan, D., Salameh, D., Brezins, M., van den Akker-Berman, L., Guetta, V., Hashomer, T., Rozenman, Y., Biagini, A., Berti, S., Ferrero, M., Colombo, A., Roccaforte, R., Milici, C., Scarpino, L., Salvi, A., Desideri, A., Sabbadin, D., Veneto, C., Galassi, A., Giuffrida, G., Rognoni, A., Vassanelli, C., Paffoni, P., Cioppa, A., Rubino, P., de Carlo, M., Petronio, A. S., Naccarella, F., Saia, F., Marzocchi, A., Maranga, S. S., Presbitero, P., Valsecchi, F., Esposito, G., Santini, N. M., Tubaro, M., Erglis, A., Narbute, I., Kavoliuniene, A., Zaliunas, R., Navickas, R., Luckute, D., Subkovas, E., Wagner, D., Vermeer, F., Lousberg, A., Fransen, H., Breeman, A., Tebbe, H., De Boer, M. J., van der Wal, M., Leenders, C. M., Veerhoek, M. J., Jansen, C., Bijl, M., Koppelaar, C., den Linden, V., Brons, R., Widdershofen, J. W. M. G., Broers, H., Kontny, F., Jonzon, M., Wodniecki, J., Tomasik, A., Trusz-Gluza, M., Nowak, S., Ruzyllo, W., Deptuch, T., Marques, J., Matias, F., Madeira, H., Oliveira, J., Sargento, L., Ionac, A., Dragulescu, I. S., Mut-Vitcu, B., Maximov, D., Dorobantu, M., Apetrei, E., Niculescu, R., Petrescu, V., Bucsa, A., Deleanu, D., Bucharest, Benedek, I. S., Hintea, T., Aronov, D., Tikhomirova, E., Kranjec, I., Prokselj, K., Kanic, V., Sepetoglu, A., Aytekin, S., Aytekin, V., Catakoglu, A. B., Parlar, H., Tufekcioglu, S., Ozyedek, Z., Baltali, M., Kiziltan, Vukovic, M., and Neskovic, A. N.

Subjects
Male, medicine.medical_specialty, Randomization, medicine.medical_treatment, Euro Heart Survey, Coronary Artery Disease, Revascularization, law.invention, Coronary artery disease, Randomized controlled trial, law, Internal medicine, Angioplasty, medicine, Humans, cardiovascular diseases, Angioplasty, Balloon, Coronary, Coronary Artery Bypass, CABG, Aged, Randomized Controlled Trials as Topic, business.industry, Coronary Artery Bypa, Patient Selection, PCI, Health Survey, Middle Aged, medicine.disease, Health Surveys, Surgery, Clinical trial, Stenosis, surgical procedures, operative, Clinical Trials, Phase III as Topic, Conventional PCI, Female, Cardiology and Cardiovascular Medicine, business, Human
Abstract

Aims: Revascularization in patients with coronary artery disease changed over the last two decades, favouring the number of patients treated by means of percutaneous coronary interventions (PCI) when compared with coronary artery bypass grafting (CABG). Many randomized controlled trials (RCTs) have been performed to compare these two competing revascularization techniques. Because of the strict enrolment criteria of RCTs in which highly selected patients are recruited, the applicability of the results may be limited in clinical practice. The current study evaluates to what extent patients in clinical practice were similar to those who participated in RCTs comparing PCI with CABG. Methods and results: Clinical characteristics and 1-year outcome of 4713 patients enrolled in the Euro Heart Survey on Coronary Revascularization were compared with 8647 patients who participated in 14 major RCTs, comparing PCI with CABG. In addition, we analysed which proportion of survey patients would have disqualified for trial participation (n = 3033, 64%), aiming at identifying differences between trial-eligible and trial-ineligible survey patients. In general, important differences were observed between trial participants and survey patients. Patients in clinical practice were older, more often had comorbid conditions, single-vessel disease, and left main stem stenosis when compared with trial participants. Almost identical differences were observed between trial-eligible and trial-ineligible survey patients. In clinical practice, PCI was the treatment of choice, even in patients who were trial-ineligible (46% PCI, 26% CABG, 28% medical). PCI remained the preferred treatment option in patients with multi-vessel disease (57% in trial-eligible and 40% in trial-ineligible patients, respectively, P < 0.001); yet, the risk profile of patients treated by PCI was better than that for patients treated either by CABG or by medical therapy. In the RCTs, there was no mortality difference between PCI and CABG. In clinical practice, however, we observed 1-year unadjusted survival benefit for PCI vs. CABG (2.9 vs. 5.4%, P < 0.001). Survival benefit was only observed in trial-ineligible patients (3.3 vs. 6.2%, P < 0.001). Conclusion: Many patients in clinical practice were not represented in RCTs. Moreover, only 36% of these patients were considered eligible for participating in a trial comparing PCI with CABG. We demonstrated that RCTs included younger patients with a better cardiovascular risk profile when compared with patients in everyday clinical practice. This study highlights the disparity between patients in clinical practice and patients in whom the studies that provide the evidence for treatment guidelines are performed. © The European Society of Cardiology 2006. All rights reserved.

Published
2006

33. Stentablation as a Successful Treatment Strategy for Stent Underdeployment due to Calcified Plaque

Author

Chelliah Rk, Alamgir Mf, Thackray Sd, and Bourantas C

Subjects
medicine.medical_specialty, business.industry, medicine.medical_treatment, Stent, equipment and supplies, Surgery, surgical procedures, operative, Increased risk, Stent deployment, Medicine, Treatment strategy, cardiovascular diseases, Stent thrombosis, Radiology, Cardiology and Cardiovascular Medicine, business
Abstract

Underexpansion of coronary stents represents an increased risk for subsequent stent thrombosis. Rotational artherectomy is now a commonly used technique to reduce the calcium burden in heavily calcified plaques prior to stent deployment. However, once deployed in such plaques prior to rotablation, stent underexpansion may be a challenge and dilemma exists on how best to deal with this clinical situation. In this report we describe a case where an underexpanded stent due to a heavily calcified plaque was successfully treated with stentablation, allowing for full stent expansion afterwards.

Published
2012
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34. Clinical indications for intravascular ultrasound imaging

Author

Bourantas, C. V., Naka, K. K., Garg, S., Thackray, S., Papadopoulos, D., Alamgir, F. M., Hoye, A., and Michalis, L. K.

Subjects
Image Enhancement/*methods, Endovascular Procedures/*methods, Heart Catheterization/*methods, Coronary Artery Disease/*ultrasonography, Humans, Coronary Vessels/*ultrasonography
Abstract

Intravascular ultrasound (IVUS) is a catheter-based imaging modality, which provides high resolution cross-sectional images of the coronary arteries. Unlike angiography, which displays only the opacified luminal silhouette, IVUS permits imaging of both the lumen and vessel wall and allows characterization of the type of the plaque. Although IVUS provides accurate quantitative and qualitative information regarding the lumen and outer vessel wall, it is not routinely used during coronary angiography or in angioplasty procedures because the risk to benefit ratio (additional expense, procedural time, certain degree of risk, and complication versus improvement in the outcome) does not justify routine utilization. Nevertheless, there are situations where IVUS is extremely useful tool both for diagnosis and management so the aim of this review is to summarize the indications for IVUS imaging in the contemporary clinical practice. Echocardiography

Published
2010

35. The Effect of Shear Stress on Neointimal Response Following Sirolimus- and Paclitaxel-Eluting Stent Implantation Compared With Bare-Metal Stents in Humans

Author

Papafaklis, M. I., Bourantas, C. V., Theodorakis, P. E., Katsouras, C. S., Naka, K. K., Fotiadis, D. I., and Michalis, L. K.

Subjects
3d reconstruction, human coronary-arteries, trial, drug-eluting stent(s), intravascular ultrasound analysis, in-vivo, shear stress, paclitaxel, restenosis, neointimal thickness, sirolimus, cell proliferation, histopathology, atherosclerosis, diabetes-mellitus
Abstract

Objectives We aimed to explore the relationship of neointimal thickness (NT) to shear stress (SS) after implantation of sirolimus-eluting stents (SES) and paclitaxel-eluting stents (PES) compared with bare-metal stents (BMS). We then tested the hypothesis that drug elution attenuates the SS effect. Background Neointimal thickness after BMS implantation has been associated with SS; pertinent data for drug-eluting stents (DES) are limited. Methods Three-dimensional coronary artery and stent reconstruction was performed in 30 patients at 6-month follow-up after SES (n = 10), PES (n = 10), or BMS (n = 10) implantation. Baseline SS at the stent surface was calculated using computational fluid dynamics and NT at follow-up was computed in 3-dimensional space. Results Neointimal thickness was lower in DES versus BMS (0.03 +/- 0.07 mm vs. 0.16 +/- 0.08 mm, p < 0.001) and maximum NT was reduced in SES versus PES (0.33 +/- 0.13 mm vs. 0.46 +/- 0.13 mm, p = 0.025). In the total population, both SS (slope: -0.05 mm/Pa, p < 0.001) and DES (coefficient for DES vs. BMS: -0.17 mm, p = 0.003) were independent predictors of NT. Subgroup analysis demonstrated a significant negative relationship of NT to SS in PES (slope: -0.05 mm/Pa, p = 0.016) and BMS (slope: -0.05 mm/Pa, p = 0.001). Sirolimus elution significantly attenuated the effect of SS on NT (interaction coefficient for SES vs. BMS: 0.04 mm/Pa, p = 0.023), whereas the SS effect remained unchanged in PES (interaction coefficient for PES vs. BMS: 0.01 mm/Pa, p = 0.71). Conclusions Neointimal thickness is significantly correlated (inversely) to SS in PES as in BMS. Sirolimus elution abrogates the SS effect on the neointimal response following stent implantation, whereas the SS effect is unchanged in PES. (J Am Coll Cardiol Intv 2010;3:1181-9) (C) 2010 by the American College of Cardiology Foundation Jacc-Cardiovascular Interventions

Published
2010

36. Relationship of shear stress with in-stent restenosis: Bare metal stenting and the effect of brachytherapy

Author

Papafaklis, M. I., Bourantas, C. V., Theodorakis, P. E., Katsouras, C. S., Fotiadis, D. I., and Michalis, L. K.

Subjects
3d reconstruction, beta-radiation, cell-proliferation, three-dimensional reconstruction, computational fluid dynamics, human coronary-arteries, hemodynamics, radiation therapy, intravascular ultrasound, stents, blood-flow, balloon angioplasty, intracoronary brachytherapy, angiographic follow-up, intravascular ultrasound images, border detection
Abstract

Background: The association of shear stress (SS) with in-stent restenosis after bare metal stenting is not clear. We investigated the significance of SS on predicting areas with neointima thickness (NT) in humans and the effect of vascular brachytherapy (VBT) following coronary artery stenting on the relationship of SS with NT. Methods: By using coronary angiography and intravascular ultrasound, we performed three-dimensional (3D) artery and stent reconstruction in 14 patients at 8-month follow-up after bare metal stenting with (stent&VBT group; 7 patients) or without (stent group; 7 patients) adjunctive beta-VBT. In-stent SS was calculated by applying computational fluid dynamics to the stent reconstruction and NT was determined in 3D space. Results: NT was significantly increased in the stent group (0.2 +/- 0.16 mm vs. 0.07 +/- 0.18 mm, p

Published
2009

37. Comparison of Quantitative Coronary Angiography With Intracoronary Ultrasound. Can Quantitative Coronary Angiography Accurately Estimate the Severity of a Luminal Stenosis

Author

Bourantas, C. V., Tweddel, A. C., Papafaklis, M. I., Karvelis, P. S., Fotiadis, D. I., Katsouras, C. S., and Michalis, L. K.

Subjects
validation, arteries, images, disease, biplane angiography, intracoronary ultrasound, 3-dimensional reconstruction, morphology, segments, in-vivo, lesions, quantitative coronary angiography, intravascular ultrasound
Abstract

In this study we investigated the accuracy of monoplane and biplane quantitative coronary angiography in estimating the luminal dimensions, Using intracoronary Ultrasound as gold standard. Biplane angiography and intracoronary ultrasound were performed in 24 arterial segments. The end-diastolic intracoronary ultrasound Frames Were manually selected and segmented. In 2 end-diastolic X ray projections, quantitative coronary angiography was performed and a novel methodology was applied to register the segmented frames onto the processed angiographic images. The luminal areas determined by quantitative coronary angiography in 1 (monoplane) and 2 projections (mean) were compared with those determined 1)), intracoronary ultrasound. The obtained correlation coefficients for the monoplane and mean estimations were 0.69 +/- 0.12 and 0.77 +/- 0.08, respectively. It would appear that by increasing the angle between the biplane projections, the correlation between intracoronary ultrasound and mean estimations improves. Our results provide evidence that orthogonal biplane angiography is more reliable and should be preferred to assess luminal dimensions. Angiology

Published
2009

38. ANGIOCARE: An automated system for fast three-dimensional coronary reconstruction by integrating angiographic and intracoronary ultrasound data

Author

Bourantas, C. V., Kalatzis, F. G., Papafaklis, M. I., Fotiadis, D. I., Tweddel, A. C., Kourtis, I. C., Katsouras, C. S., and Michalis, L. K.

Subjects
quantitative-analysis, plaque volume, arteries, validation, biplane angiography, three-dimensional reconstruction, intracoronary ultrasound, computed-tomography, shear-stress, border detection, in-vivo, intravascular ultrasound
Abstract

Objectives: The development of an automated, user-friendly system (ANGIOCARE), for rapid three-dimensional (3D) coronary reconstruction, integrating angiographic and, intracoronary ultrasound (ICUS) data. Methods: Biplane angiographic and ICUS sequence images are imported into the system where a prevalidated method is used for coronary reconstruction. This incorporates extraction of the catheter path from two end-diastolic X-ray images and detection of regions of interest (lumen, outer vessel wall) in the ICUS sequence by an automated border detection algorithm. The detected borders are placed perpendicular to the catheter path and established algorithms used to estimate their absolute orientation. The resulting 3D object is imported into an advanced visualization module with which the operator can interact, examine plaque distribution (depicted as a color coded map) and assess plaque burden by virtual endoscopy. Results: Data from 19 patients (27 vessels) undergoing biplane angiography and ICUS were examined. The reconstructed vessels were 21.3-80.2 mm long. The mean difference was 0.9 +/- 2.9% between the plaque volumes measured using linear 3D ICUS analysis and the volumes, estimated by taking into account the curvature of the vessel. The time required to reconstruct a luminal narrowing of 25 mm was approximately 10 min. Conclusion: The ANGIOCARE system provides rapid coronary reconstruction allowing the operator accurately to estimate the length of the lesion and determine plaque distribution and volume. (C) 2008 Wiley-Liss, Inc. Catheterization and Cardiovascular Interventions

Published
2008

40. Coronary dilatation 10 weeks after paclitaxel-eluting stent implantation. No role of shear stress in lumen enlargement?

Author

Papafaklis, M. I., Katsouras, C. S., Theodorakis, P. E., Bourantas, C. V., Fotiadis, D. I., and Michalis, L. K.

Subjects
three-dimensional reconstruction, coronary aneurysm, mechanism, computational fluid dynamics, trial, intravascular ultrasound analysis, malapposition, shear stress, intravascular ultrasound, restenosis, apposition, artery lesions, follow-up, regression, humans
Abstract

We report a patient with coronary dilatation 10 weeks after paclitaxel-eluting stent implantation in the right coronary artery (RCA). Coronary angiography demonstrated a double-locular lumen dilatation in the body of the stented segment of the RCA, and intravascular ultrasound interrogation revealed the corresponding region with evidence of tissue regression behind the stent struts, incomplete stent apposition, and lumen enlargement. After three-dimensionally (3D) reconstructing the RCA, we applied computational fluid dynamics to the 3D RCA model, representing the lumen of the artery at the moment of stent implantation, and investigated the correlation of both neointimal thickness and tissue regression depth with shear stress in the stent. Neointimal thickness was found to be inversely related to shear stress, but there was no significant association of tissue regression depth with shear stress. Post-procedural stent malapposition, thrombus dissolution, and less possibly, a localized hypersensitivity reaction are potential mechanisms for the lumen enlargement in this case. Heart Vessels

Published
2007

41. Association of endothelial shear stress with plaque thickness in a real three-dimensional left main coronary artery bifurcation model

Author

Papafaklis, M. I., Bourantas, C. V., Theodorakis, P. E., Katsouras, C. S., Fotiadis, D. I., and Michalis, L. K.

Subjects
flow, angiography, computational fluid dynamics, atherosclerosis, coronary bifurcation, shear stress, intravascular ultrasound
Abstract

We report for the first time a real three-dimensional reconstruction of the left main coronary artery, left main bifurcation, left anterior descending coronary artery and left circumflex coronary artery using biplane angiography and intravascular ultrasound imaging in a patient with a proximal stenosis in the left anterior descending coronary artery. By using computational fluid dynamics in the three-dimensional luminal model we computed endothelial shear stress, while plaque thickness was calculated as the difference between the three-dimensional lumen and outer vessel wall; plaque thickness was found to be inversely related to endothelial shear stress in the left main coronary artery and bifurcation. The application of our methodology for real three-dimensional reconstruction of the left main coronary artery and bifurcation is useful for investigating the relationship of hemodynamic parameters with plaque thickness in this critical coronary region. (c) 2006 Elsevier Ireland Ltd. All rights reserved. Int J Cardiol

Published
2007

44. A method for 3D reconstruction of coronary arteries using biplane angiography and intravascular ultrasound images

Author

Bourantas, C. V., Kourtis, I. C., Plissiti, M. E., Fotiadis, D. I., Katsouras, C. S., Papafaklis, M. I., and Michalis, L. K.

Subjects
3d artery reconstruction, validation, fusion, biplane angiography, arteriography, 3-dimensional reconstruction, correct 3-d reconstruction, border detection, intravascular ultrasound
Abstract

The aim of this study is to describe a new method for the three-dimensional reconstruction of coronary arteries and its quantitative validation. Our approach is based on the fusion of the data provided by intravascular ultrasound images (IVUS) and biplane angiographies. A specific segmentation algorithm is used for the detection of the regions of interest in intravascular ultrasound images. A new methodology is also introduced for the accurate extraction of the catheter path. In detail, a cubic B-spline is used for approximating the catheter path in each biplane projection. Each B-spline Curve is Swept along the normal direction of its X-ray angiographic plane forming a surface. The intersection of the two surfaces is a 3D curve, which represents the reconstructed path. The detected regions of interest in the IVUS images are placed perpendicularly onto the path and their relative axial twist is computed using the sequential triangulation algorithm. Then, ail efficient algorithm is applied to estimate the absolute orientation of the first IVUS frame. In order to obtain 3D visualization the commercial package Geomagic Studio 4.0 is used. The performance of the proposed method is assessed using a validation methodology which addresses the separate validation of each step followed for obtaining the coronary reconstruction. The performance of the segmentation algorithm was examined in 80 IVUS images. The reliability of the path extraction method was studied in vitro using a metal wire model and in vivo in a dataset of I I patients. The performance of the sequential triangulation algorithm was tested in two gutter models and in the coronary arteries (marked with metal clips) of six cadaveric sheep hearts. Finally, the accuracy in the estimation of the first IVUS frame absolute orientation was examined ill the same set of cadaveric sheep hearts. The obtained results demonstrate that the proposed reconstruction method is reliable and capable of depicting the morphology of coronary arteries. (C) 2005 Elsevier Ltd. All rights reserved. Computerized Medical Imaging and Graphics

Published
2005

45. In vivo validation of a novel semi-automated method for border detection in intravascular ultrasound images

Author

Bourantas, C. V., Plissiti, M. E., Fotiadis, D. I., Protopappas, V. C., Mpozios, G. V., Katsouras, C. S., Kourtis, I. C., Rees, M. R., and Michalis, L. K.

Subjects
adventitial borders, plaque, lumen, contour-detection, segmentation, coronary atherosclerosis, angiography, 3-dimensional intracoronary ultrasound, algorithms, interventions
Abstract

The aim of this works was to evaluate a new semi-automated intravascular ultrasound (IVUS) border detection method. The method was used to identify the lumen and the external elastic membrane or the borders of stents in 80 IVUS images randomly selected from 10 consecutive human coronary arteries. These semi-automated results were compared with observations of two experts. Several indices in each case were obtained in order fully to evaluate the method. The time required for identification of the borders was also recorded. The interobserver variability of the method ranged from 1.21% to 5.61%, the correlation coefficient from 0.98 to 0.99, the slope was close to unity (0.94-1.03), the y intercept close to zero and the Williams index value was close to unity (range 0.67-0.91). The time (mean +/- SD) required for the method to identify the borders of the different vessel layers for the whole IVUS sequence was 5.2 +/- 0.2 min. The results demonstrate that the method is reliable and capable of identifying rapidly and accurately the different vessel layers depicted in IVUS images. British Journal of Radiology

Published
2005

46. Predictive factors for response to rituximab in Waldenstrom's macroglobulinemia

Author

Dimopoulos, MA Anagnostopoulos, A Zervas, C Kyrtsonis, MC and Zomas, A Bourantas, C Anagnostopoulos, N Pangalis, G

Abstract

Rituximab is an active agent for the treatment of Waldenstrom’s macroglobulinemia. However, many patients do not respond to this agent and several others develop secondary resistance. In order to identify clinical and laboratory parameters that could predict a higher likelihood for response, we evaluated 54 patients who were treated with single-agent rituximab. Twenty-four patients (44%)exhibited >= 50% reduction of serum monoclonal protein. Previously untreated and pretreated patients had the same probability for response. Low response rates were noted in patients with serum monoclonal protein level >= 40 g/L (17%) and serum albumin level < 35 g/L (14%). Furthermore, a multivariate analysis indicated that high serum monoclonal protein and low albumin were the dominant variables associated with shorter time to progression. The presence of 2, 1, or none of these variables was associated with median times to progression of 4 months, 11 months, and approximately 48 months, respectively. We conclude that patients with low levels of monoclonal protein and normal albumin are the best candidates for treatment with rituximab.

Published
2005

49. Clinical and intravascular imaging outcomes at 1 and 2 years after implantation of absorb everolimus eluting bioresorbable vascular scaffolds in small vessels. Late lumen enlargement: Does bioresorption matter with small vessel size? Insight from the ABSORB cohort B trial.

Author

Li X., Miquel-Hebert K., Serruys P.W., Ormiston J.A., Diletti R., Farooq V., Girasis C., Bourantas C., Onuma Y., Heo J.H., Gogas B.D., Van Geuns R.-J., Regar E., De Bruyne B., Dudek D., Thuesen L., Chevalier B., McClean D., Windecker S., Whitbourn R.J., Smits P., Garcia-Garcia H.M., Koolen J., Veldhof S., Meredith I., Li X., Miquel-Hebert K., Serruys P.W., Ormiston J.A., Diletti R., Farooq V., Girasis C., Bourantas C., Onuma Y., Heo J.H., Gogas B.D., Van Geuns R.-J., Regar E., De Bruyne B., Dudek D., Thuesen L., Chevalier B., McClean D., Windecker S., Whitbourn R.J., Smits P., Garcia-Garcia H.M., Koolen J., Veldhof S., and Meredith I.

Abstract

Background: The long-term results after second generation everolimus eluting bioresorbable vascular scaffold (Absorb BVS) placement in small vessels are unknown. Therefore, we investigated the impact of vessel size on long-term outcomes, after Absorb BVS implantation. Method(s): In ABSORB Cohort B Trial, out of the total study population (101 patients), 45 patients were assigned to undergo 6-month and 2-year angiographic follow-up (Cohort B1) and 56 patients to have angiographic follow-up at 1-year (Cohort B2). The prereference vessel diameter (RVD) was <2.5 mm (small-vessel group) in 41 patients (41 lesions) and >=2.5 mm (large-vessel group) in 60 patients (61 lesions). Outcomes were compared according to pre-RVD. Result(s): At 2-year angiographic follow-up no differences in late lumen loss (0.29+/-0.16 mm vs 0.25+/-0.22 mm, p=0.4391), and in-segment binary restenosis (5.3% vs 5.3% p=1.0000) were demonstrated between groups. In the small-vessel group, intravascular ultrasound analysis showed a significant increase in vessel area (12.25+/-3.47 mm2 vs 13.09+/-3.38 mm2 p=0.0015), scaffold area (5.76+/-0.96 mm2 vs 6.41+/-1.30 mm2 p=0.0008) and lumen area (5.71+/-0.98 mm2 vs 6.20+/-1.27 mm 2 p=0.0155) between 6-months and 2-year follow-up. No differences in plaque composition were reported between groups at either time point. At 2-year clinical follow-up, no differences in ischaemia-driven major adverse cardiac events (7.3% vs 10.2%, p=0.7335), myocardial infarction (4.9% vs 1.7%, p=0.5662) or ischaemia-driven target lesion revascularisation (2.4% vs 8.5%, p=0.3962) were reported between small and large vessels. No deaths or scaffold thrombosis were observed. Conclusion(s): Similar clinical and angiographic outcomes at 2-year follow-up were reported in small and large vessel groups. A significant late lumen enlargement and positive vessel remodelling were observed in small vessels.

Published
2013

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