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2,775 results on '"Lang, Roberto M."'

103. Noninvasive Assessment of Left Ventricular End-Diastolic Pressure Using Machine Learning Derived Phasic Left Atrial Strain

Author

Gruca, Martin M, primary, Slivnick, Jeremy A, additional, Singh, Amita, additional, Cotella, Juan, additional, Subashchandran, Varun, additional, Prabhu, David, additional, Asch, Federico M, additional, Siddiki, Mikail, additional, Gupta, Nikhil, additional, Mor-Avi, Victor, additional, Su, Jimmy L, additional, and Lang, Roberto M, additional

Published
2023
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105. Feasibility and Accuracy of Automated Software for Transthoracic Three-Dimensional Left Ventricular Volume and Function Analysis: Comparisons with Two-Dimensional Echocardiography, Three-Dimensional Transthoracic Manual Method, and Cardiac Magnetic Resonance Imaging

Author

Tamborini, Gloria, Piazzese, Concetta, Lang, Roberto M., Muratori, Manuela, Chiorino, Elisa, Mapelli, Massimo, Fusini, Laura, Ali, Sarah Ghulam, Gripari, Paola, Pontone, Gianluca, Andreini, Daniele, and Pepi, Mauro

Published
2017
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109. Recommendations for Noninvasive Evaluation of Native Valvular Regurgitation: A Report from the American Society of Echocardiography Developed in Collaboration with the Society for Cardiovascular Magnetic Resonance

Author

Zoghbi, William A., Adams, David, Bonow, Robert O., Enriquez-Sarano, Maurice, Foster, Elyse, Grayburn, Paul A., Hahn, Rebecca T., Han, Yuchi, Hung, Judy, Lang, Roberto M., Little, Stephen H., Shah, Dipan J., Shernan, Stanton, Thavendiranathan, Paaladinesh, Thomas, James D., and Weissman, Neil J.

Published
2017
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110. Three-dimensional echocardiographic evaluation of longitudinal and non-longitudinal components of right ventricular contraction: results from the World Alliance of Societies of Echocardiography study.

Author

Cotella, Juan I, Kovacs, Attila, Addetia, Karima, Fabian, Alexandra, Asch, Federico M, Lang, Roberto M, and Investigators, WASE

Subjects
ECHOCARDIOGRAPHY, REFERENCE values, COMPUTER software, VENTRICULAR ejection fraction, RIGHT heart ventricle, AGE distribution, STRUCTURAL models, RACE, ASIAN Americans, WORLD health, SEX distribution, COMPARATIVE studies, HEART physiology, INTERNATIONAL agencies, AFRICAN Americans
Abstract

Aims Right ventricular (RV) functional assessment is mainly limited to its longitudinal contraction. Dedicated three-dimensional echocardiography (3DE) software enabled the separate assessment of the non-longitudinal components of RV ejection fraction (EF). The aims of this study were (i) to establish normal values for RV 3D-derived longitudinal, radial, and anteroposterior EF (LEF, REF, and AEF, respectively) and their relative contributions to global RVEF, (ii) to calculate 3D RV strain normal values, and (iii) to determine sex-, age-, and race-related differences in these parameters in a large group of normal subjects (WASE study). Methods and results 3DE RV wide-angle datasets from 1043 prospectively enrolled healthy adult subjects were analysed to generate a 3D mesh model of the RV cavity (TomTec). Dedicated software (ReVISION) was used to analyse RV motion along the three main anatomical planes. The EF values corresponding to each plane were identified as LEF, REF, and AEF. Relative contributions were determined by dividing each EF component by the global RVEF. RV strain analysis included longitudinal, circumferential, and global area strains (GLS, GCS, and GAS, respectively). Results were categorized by sex, age (18–40, 41–65, and >65 years), and race. Absolute REF, AEF, LEF, and global RVEF were higher in women than in men (P < 0.001). With aging, both sexes exhibited a decline in all components of longitudinal shortening (P < 0.001), which was partially compensated in elderly women by an increase in radial contraction. Black subjects showed lower RVEF and GAS values compared with white and Asian subjects of the same sex (P < 0.001), and black men showed significantly higher RV radial but lower longitudinal contributions to global RVEF compared with Asian and white men. Conclusion 3DE evaluation of the non-longitudinal components of RV contraction provides additional information regarding RV physiology, including sex-, age-, and race-related differences in RV contraction patterns that may prove useful in disease states involving the right ventricle. [ABSTRACT FROM AUTHOR]

Published
2024
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111. Optimización de la interpretación de ecocardiogramas con la utilización de Machine Learning en el estudio WASE.

Author

COTELLA, JUAN I., ADDETIA, KARIMA, MIYOSHI, TATSUYA, KEBED, KALIE, BLITZ, ALEXANDRA, SCHRECKENBERG, MARCUS, HITSCHRICH, NIKLAS, PRADO, ALDO D., FILIPINI, EDUARDO, RONDEROS, RICARDO, MOR-AVI, VICTOR, LANG, ROBERTO M., and ASCH, FEDERICO M.

Subjects
CONVOLUTIONAL neural networks, MACHINE learning, IMAGE recognition (Computer vision), MEDICAL personnel, AUTOMATIC identification
Abstract

Copyright of Revista Argentina de Cardiología is the property of Sociedad Argentina de Cardiologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
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117. Refining the Prothrombotic State in Atrial Fibrillation With Left Atrial Appendage Three-Dimensional Echocardiography

Author

Soulat-Dufour, Laurie, Lang, Sylvie, Ponnaiah, Maharajah, Simon, Théo, Ederhy, Stephane, Adavane-Scheuble, Saroumadi, Chauvet-Droit, Marion, Capderou, Elodie, Arnaud, Camille, Sotto, Eleonore, Cohen, Raphael, d’Izarny Gargas, Thibault, Scheuble, Aliocha, Hammoudi, Nadjib, Beraud, Anne-Sophie, Addetia, Karima, Boccara, Franck, Lang, Roberto M., and Cohen, Ariel

Published
2024
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138. Normal Values of Three-Dimensional Right Ventricular Size and Function Measurements: Results of the World Alliance Societies of Echocardiography Study

Author

Addetia, K, Miyoshi, T, Amuthan, V, Citro, R, Daimon, M, Gutierrez Fajardo, P, Kasliwal, R, Kirkpatrick, J, Monaghan, M, Muraru, D, Ogunyankin, K, Park, S, Ronderos, R, Sadeghpour, A, Scalia, G, Takeuchi, M, Tsang, W, Tucay, E, Tude Rodrigues, A, Zhang, Y, Singulane, C, Hitschrich, N, Blankenhagen, M, Degel, M, Schreckenberg, M, Mor-Avi, V, Asch, F, Lang, R, Addetia, Karima, Miyoshi, Tatsuya, Amuthan, Vivekanandan, Citro, Rodolfo, Daimon, Masao, Gutierrez Fajardo, Pedro, Kasliwal, Ravi R, Kirkpatrick, James N, Monaghan, Mark J, Muraru, Denisa, Ogunyankin, Kofo O, Park, Seung Woo, Ronderos, Ricardo E, Sadeghpour, Anita, Scalia, Gregory M, Takeuchi, Masaaki, Tsang, Wendy, Tucay, Edwin S, Tude Rodrigues, Ana Clara, Zhang, Yun, Singulane, Cristiane C, Hitschrich, Niklas, Blankenhagen, Michael, Degel, Markus, Schreckenberg, Marcus, Mor-Avi, Victor, Asch, Federico M, Lang, Roberto M, Addetia, K, Miyoshi, T, Amuthan, V, Citro, R, Daimon, M, Gutierrez Fajardo, P, Kasliwal, R, Kirkpatrick, J, Monaghan, M, Muraru, D, Ogunyankin, K, Park, S, Ronderos, R, Sadeghpour, A, Scalia, G, Takeuchi, M, Tsang, W, Tucay, E, Tude Rodrigues, A, Zhang, Y, Singulane, C, Hitschrich, N, Blankenhagen, M, Degel, M, Schreckenberg, M, Mor-Avi, V, Asch, F, Lang, R, Addetia, Karima, Miyoshi, Tatsuya, Amuthan, Vivekanandan, Citro, Rodolfo, Daimon, Masao, Gutierrez Fajardo, Pedro, Kasliwal, Ravi R, Kirkpatrick, James N, Monaghan, Mark J, Muraru, Denisa, Ogunyankin, Kofo O, Park, Seung Woo, Ronderos, Ricardo E, Sadeghpour, Anita, Scalia, Gregory M, Takeuchi, Masaaki, Tsang, Wendy, Tucay, Edwin S, Tude Rodrigues, Ana Clara, Zhang, Yun, Singulane, Cristiane C, Hitschrich, Niklas, Blankenhagen, Michael, Degel, Markus, Schreckenberg, Marcus, Mor-Avi, Victor, Asch, Federico M, and Lang, Roberto M

Abstract

Background: Normal values for three-dimensional (3D) right ventricular (RV) size and function are not well established, as they originate from small studies that involved predominantly white North American and European populations, did not use RV-focused views, and relied on older 3D RV analysis software. The World Alliance Societies of Echocardiography study was designed to generate reference ranges for normal subjects around the world. The aim of this study was to assess the worldwide capability of 3D imaging of the right ventricle and report size and function measurements, including their dependency on age, sex, and ethnicity. Methods: Healthy subjects free of cardiac, pulmonary, and renal disease were prospectively enrolled at 19 centers in 15 countries, representing six continents. Three-dimensional wide-angle RV data sets were obtained and analyzed using dedicated RV software (TomTec) to measure end-diastolic volume (EDV), end-systolic volume (ESV), stroke volume, and ejection fraction (EF). Results were categorized by sex, age (18-40, 41-65, and >65 years) and ethnicity. Results: Of the 2,007 subjects with attempted 3D RV acquisitions, 1,051 had adequate image quality for confident measurements. Upper and lower limits for body surface area-indexed EDV, ESV, and EF were 48 and 95 mL/m2, 19 and 43 mL/m2, and 44% and 58%, respectively, for men and 42 and 81 mL/m2, 16 and 36 mL/m2, and 46% and 61%, respectively, for women. Men had significantly larger EDVs, ESVs, and stroke volumes (even after body surface area indexing) and lower EFs than women (P < .05). EDV and ESV did not show any meaningful differences among age groups. Three-dimensional RV volumes were smallest in Asians. Conclusions: Reliability of 3D RV acquisition is low worldwide, underscoring the importance of future improvements in imaging techniques. Sex and race must be taken into consideration in the assessment of both RV volumes and EF.

Published
2023

139. Normative values of the aortic valve area and Doppler measurements using two-dimensional transthoracic echocardiography: results from the Multicentre World Alliance of Societies of Echocardiography Study

Author

Cotella, J, Miyoshi, T, Mor-Avi, V, Addetia, K, Schreckenberg, M, Sun, D, Slivnick, J, Blankenhagen, M, Hitschrich, N, Amuthan, V, Citro, R, Daimon, M, Gutiérrez-Fajardo, P, Kasliwal, R, Kirkpatrick, J, Monaghan, M, Muraru, D, Ogunyankin, K, Park, S, Tude Rodrigues, A, Ronderos, R, Sadeghpour, A, Scalia, G, Takeuchi, M, Tsang, W, Tucay, E, Zhang, M, Prado, A, Asch, F, Lang, R, Cotella, Juan I, Miyoshi, Tatsuya, Mor-Avi, Victor, Addetia, Karima, Schreckenberg, Marcus, Sun, Deyu, Slivnick, Jeremy A, Blankenhagen, Michael, Hitschrich, Niklas, Amuthan, Vivekanandan, Citro, Rodolfo, Daimon, Masao, Gutiérrez-Fajardo, Pedro, Kasliwal, Ravi, Kirkpatrick, James N, Monaghan, Mark J, Muraru, Denisa, Ogunyankin, Kofo O, Park, Seung Woo, Tude Rodrigues, Ana Clara, Ronderos, Ricardo, Sadeghpour, Anita, Scalia, Gregory, Takeuchi, Masaaki, Tsang, Wendy, Tucay, Edwin S, Zhang, Mei, Prado, Aldo D, Asch, Federico M, Lang, Roberto M, Cotella, J, Miyoshi, T, Mor-Avi, V, Addetia, K, Schreckenberg, M, Sun, D, Slivnick, J, Blankenhagen, M, Hitschrich, N, Amuthan, V, Citro, R, Daimon, M, Gutiérrez-Fajardo, P, Kasliwal, R, Kirkpatrick, J, Monaghan, M, Muraru, D, Ogunyankin, K, Park, S, Tude Rodrigues, A, Ronderos, R, Sadeghpour, A, Scalia, G, Takeuchi, M, Tsang, W, Tucay, E, Zhang, M, Prado, A, Asch, F, Lang, R, Cotella, Juan I, Miyoshi, Tatsuya, Mor-Avi, Victor, Addetia, Karima, Schreckenberg, Marcus, Sun, Deyu, Slivnick, Jeremy A, Blankenhagen, Michael, Hitschrich, Niklas, Amuthan, Vivekanandan, Citro, Rodolfo, Daimon, Masao, Gutiérrez-Fajardo, Pedro, Kasliwal, Ravi, Kirkpatrick, James N, Monaghan, Mark J, Muraru, Denisa, Ogunyankin, Kofo O, Park, Seung Woo, Tude Rodrigues, Ana Clara, Ronderos, Ricardo, Sadeghpour, Anita, Scalia, Gregory, Takeuchi, Masaaki, Tsang, Wendy, Tucay, Edwin S, Zhang, Mei, Prado, Aldo D, Asch, Federico M, and Lang, Roberto M

Abstract

AIMS: Aortic valve area (AVA) used for echocardiographic assessment of aortic stenosis (AS) has been traditionally interpreted independently of sex, age and race. As differences in normal values might impact clinical decision-making, we aimed to establish sex-, age- and race-specific normative values for AVA and Doppler parameters using data from the World Alliance Societies of Echocardiography (WASE) Study. METHODS AND RESULTS: Two-dimensional transthoracic echocardiographic studies were obtained from 1903 healthy adult subjects (48% women). Measurements of the left ventricular outflow tract (LVOT) diameter and Doppler parameters, including AV and LVOT velocity time integrals (VTIs), AV mean pressure gradient, peak velocity, were obtained according to ASE/EACVI guidelines. AVA was calculated using the continuity equation. Compared with men, women had smaller LVOT diameters and AVA values, and higher AV peak velocities and mean gradients (all P < 0.05). LVOT and AV VTI were significantly higher in women (P < 0.05), and both parameters increased with age in both sexes. AVA differences persisted after indexing to body surface area. According to the current diagnostic criteria, 13.5% of women would have been considered to have mild AS and 1.4% moderate AS. LVOT diameter and AVA were lower in older subjects, both men and women, and were lower in Asians, compared with whites and blacks. CONCLUSION: WASE data provide clinically relevant information about significant differences in normal AVA and Doppler parameters according to sex, age, and race. The implementation of this information into clinical practice should involve development of specific normative values for each ethnic group using standardized methodology.

Published
2023

140. Value of 3D echocardiography in the diagnosis of arrhythmogenic right ventricular cardiomyopathy

Author

Addetia, K, Mazzanti, A, Maragna, R, Monti, L, Yamat, M, Kukavica, D, Pagan, E, Kishiki, K, Prado, A, Marino, M, Bagnardi, V, Priori, S, Lang, R, Addetia, Karima, Mazzanti, Andrea, Maragna, Riccardo, Monti, Lorenzo, Yamat, Megan, Kukavica, Deni, Pagan, Eleonora, Kishiki, Kanako, Prado, Aldo, Marino, Maira, Bagnardi, Vincenzo, Priori, Silvia, Lang, Roberto M, Addetia, K, Mazzanti, A, Maragna, R, Monti, L, Yamat, M, Kukavica, D, Pagan, E, Kishiki, K, Prado, A, Marino, M, Bagnardi, V, Priori, S, Lang, R, Addetia, Karima, Mazzanti, Andrea, Maragna, Riccardo, Monti, Lorenzo, Yamat, Megan, Kukavica, Deni, Pagan, Eleonora, Kishiki, Kanako, Prado, Aldo, Marino, Maira, Bagnardi, Vincenzo, Priori, Silvia, and Lang, Roberto M

Abstract

AIMS: The 2010 Task Force Criteria (TFC) require that both right ventricular (RV) regional wall-motion abnormalities (WMA) and specific RV size cut-offs be met in order to fulfil one of the major criterion for arrhythmogenic right ventricular cardiomyopathy (ARVC) diagnosis. Currently, 2D echocardiography (2DE) and cardiovascular magnetic resonance imaging (cMRI) are used to determine if these criteria are met. Little is known about the diagnostic value of 3D echocardiography (3DE) in ARVC. The aim of this study was to determine whether a combination of 2DE-3DE is non-inferior to the currently used 2DE-cMRI combination in the diagnosis of patients with ARVC. METHODS AND RESULTS: Thirty-nine individuals (47±15 years) with suspected ARVC underwent evaluation of the RV with cMRI, 2DE, and 3DE. 3DE and cMRI were independently used to obtain RV volumes, ejection fraction (EF) and determine the presence of segmental RV WMA. Studies were blindly classified as meeting criteria for ARVC in accordance with the 2010 TFC. Kappa statistics were used to test the concordance between 2DE-cMRI and 2DE-3DE approaches. Using the 2DE-cMRI approach, 3/39 were not affected, 5/39 possible, 8/39 borderline, and 23/39 definite ARVC. The proposed 2DE-3DE approach yielded 5/39 not affected, 7/39 possible, 8/39 borderline, and 19/39 definite diagnoses. The two approaches were highly concordant (k = 0.71; 95% confidence interval: 0.44-0.84). Although 3DE underestimated RV volumes in comparison with cMRI, interfering, in some instances with the fulfilment of a major criterion, it was able to identify more RV WMA (28/39) than 2DE (11/39), with a detection-rate comparable to cMRI (33/39) highlighting a unique advantage. CONCLUSION: The combination of 2DE-3DE for ARVC diagnosis is comparable to the conventional 2DE-cMRI approach. 3DE should be performed in all suspected ARVC patients to aide in the detection of WMA.

Published
2023

141. Noninvasive assessment of left ventricular end-diastolic pressure using machine learning–derived phasic left atrial strain.

Author

Gruca, Martin M, Slivnick, Jeremy A, Singh, Amita, Cotella, Juan I, Subashchandran, Varun, Prabhu, David, Asch, Federico M, Siddiki, Mikail, Gupta, Nikhil, Mor-Avi, Victor, Su, Jimmy L, and Lang, Roberto M

Subjects
ECHOCARDIOGRAPHY, LEFT heart ventricle, CARDIAC catheterization, MACHINE learning, RETROSPECTIVE studies, DIASTOLIC blood pressure, PARADIGMS (Social sciences), DESCRIPTIVE statistics, SENSITIVITY & specificity (Statistics), LEFT heart atrium
Abstract

Aims While transthoracic echocardiography (TTE) assessment of left ventricular end-diastolic pressure (LVEDP) is critically important, the current paradigm is subject to error and indeterminate classification. Recently, peak left atrial strain (LAS) was found to be associated with LVEDP. We aimed to test the hypothesis that integration of the entire LAS time curve into a single parameter could improve the accuracy of peak LAS in the noninvasive assessment of LVEDP with TTE. Methods and results We retrospectively identified 294 patients who underwent left heart catheterization and TTE within 24 h. LAS curves were trained using machine learning (100 patients) to detect LVEDP ≥ 15 mmHg, yielding the novel parameter LAS index (LASi). The accuracy of LASi was subsequently validated (194 patients), side by side with peak LAS and ASE/EACVI guidelines, against invasive filling pressures. Within the validation cohort, invasive LVEDP was elevated in 116 (59.8%) patients. The overall accuracy of LASi, peak LAS, and American Society of Echocardiography/European Association for Cardiovascular Imaging (ASE/EACVI) algorithm was 79, 75, and 76%, respectively (excluding 37 patients with indeterminate diastolic function by ASE/EACVI guidelines). When the number of LASi indeterminates (defined by near-zero LASi values) was matched to the ASE/EACVI guidelines (n = 37), the accuracy of LASi improved to 87%. Importantly, among the 37 patients with ASE/EACVI-indeterminate diastolic function, LASi had an accuracy of 81%, compared with 76% for peak LAS. Conclusion LASi allows the detection of elevated LVEDP using invasive measurements as a reference, at least as accurately as peak LAS and current diastolic function guideline algorithm, with the advantage of no indeterminate classifications in patients with measurable LAS. [ABSTRACT FROM AUTHOR]

Published
2024
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142. Normal Values of 3D Right Ventricular Size and Function Measurements: Results of the World Alliance of Societies of Echocardiography Study

Author

Addetia, Karima, primary, Miyoshi, Tatsuya, additional, Amuthan, Vivekanandan, additional, Citro, Rodolfo, additional, Daimon, Masao, additional, Gutierrez Fajardo, Pedro, additional, Kasliwal, Ravi R., additional, Kirkpatrick, James N., additional, Monaghan, Mark J., additional, Muraru, Denisa, additional, Ogunyankin, Kofo O., additional, Park, Seung Woo, additional, Ronderos, Ricardo E., additional, Sadeghpour, Anita, additional, Scalia, Gregory M., additional, Takeuchi, Masaaki, additional, Tsang, Wendy, additional, Tucay, Edwin S., additional, Tude Rodrigues, Ana Clara, additional, Zhang, Yun, additional, Singulane, Cristiane C., additional, Hitschrich, Niklas, additional, Blankenhagen, Michael, additional, Degel, Markus, additional, Schreckenberg, Marcus, additional, Mor-Avi, Victor, additional, Asch, Federico M., additional, Lang, Roberto M., additional, Prado, Aldo D., additional, Kwon, Agatha, additional, Hoschke-Edwards, Samantha, additional, Afonso, Tania Regina, additional, Thampinathan, Babitha, additional, Sooriyakanthan, Maala, additional, Zhu, Tiangang, additional, Wang, Zhilong, additional, Alagesan, R., additional, Badano, Luigi, additional, Nakao, Tomoko, additional, Kawata, Takayuki, additional, Hirokawa, Megumi, additional, Sawada, Naoko, additional, Yun, Hye Rim, additional, and Hwang, Ji-won, additional

Published
2023
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144. NOVEL ARTIFICIAL INTELLIGENCE GUIDANCE ALGORITHM ENABLES ACQUISITION BY NOVICES OF DIAGNOSTIC QUALITY ECHOCARDIOGRAPHIC IMAGES

Author

Klempfner, Robert V., primary, Lang, Roberto M., additional, Mor-Avi, Victor, additional, Guile, Brittney, additional, Hipke, Kyle, additional, Cotella, Juan Ignacio, additional, Kaminski, Abigail, additional, Moreno, Merav, additional, Spiegelstein, Dan, additional, Avisar, Noa, additional, Ludomirsky, Achiau, additional, Kezurer, Itay, additional, and Khandheria, Bijoy K., additional

Published
2023
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145. Multichamber Strain Predicts Atrial Fibrillation in Cardiac Amyloidosis

Author

Yogeswaran, Vidhushei, primary, Singulane, Cristiane C., additional, Slivnick, Jeremy A., additional, Kirkpatrick, James N., additional, Addetia, Karima, additional, Lang, Roberto M., additional, Vasbinder, Alexi, additional, Liu, Jennifer E., additional, Maurer, Mathew S., additional, and Cheng, Richard K., additional

Published
2023
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