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5 results on '"Hope, M. D."'

1. Extended 3D approach for quantification of abnormal ascending aortic flow

Author

Sigovan, M., Dyverfeldt, P., Wrenn, J., Tseng, E. E., Saloner, D., Hope, M. D., Imagerie et modélisation Vasculaires, Thoraciques et Cérébrales (MOTIVATE), Centre de Recherche en Acquisition et Traitement de l'Image pour la Santé (CREATIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Hospices Civils de Lyon (HCL)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Hospices Civils de Lyon (HCL)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Adult, Male, Clinical Sciences, Heart Valve Diseases, Biomedical Engineering, Cardiovascular, Imaging, Congenital, Bicuspid Aortic Valve Disease, [INFO.INFO-IM]Computer Science [cs]/Medical Imaging, Humans, Aorta, Heart Defects, Aged, Eccentric jets, Aortic Valve Stenosis, BAV, Middle Aged, Magnetic Resonance Imaging, Valves, Nuclear Medicine & Medical Imaging, Aortic Valve, Three-Dimensional, Female, Cognitive Sciences, Blood Flow Velocity, MRI
Abstract

BackgroundFlow displacement quantifies eccentric flow, a potential risk factor for aneurysms in the ascending aorta, but only at a single anatomic location. The aim of this study is to extend flow displacement analysis to 3D in patients with aortic and aortic valve pathologies.Methods43 individuals were studied with 4DFlow MRI in 6 groups: healthy, tricuspid aortic valve (TAV) with aortic stenosis (AS) but no dilatation, TAV with dilatation but no AS, and TAV with both AS and dilatation, BAV without AS or dilatation, BAV without AS but with dilation. The protocol was approved by our institutional review board, and informed consent was obtained. Flow displacement was calculated for multiple planes along the ascending aorta, and 2D and 3D analyses were compared.ResultsGood correlation was found between 2D flow displacement and both maximum and average 3D values (r>0.8). Healthy controls had significantly lower flow displacement values with all approaches (p

Published
2015

2. Systolic flow displacement correlates with future ascending aortic growth in patients with bicuspid aortic valves undergoing magnetic resonance surveillance

Author

Nicholas Burris, Sigovan, M., Knauer, H. A., Tseng, E. E., Saloner, D., Hope, M. D., Imagerie et modélisation Vasculaires, Thoraciques et Cérébrales (MOTIVATE), Centre de Recherche en Acquisition et Traitement de l'Image pour la Santé (CREATIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Hospices Civils de Lyon (HCL)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Hospices Civils de Lyon (HCL)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[INFO.INFO-IM]Computer Science [cs]/Medical Imaging
Published
2014

3. International consensus statement on nomenclature and classification of the congenital bicuspid aortic valve and its aortopathy, for clinical, surgical, interventional and research purposes

Author

Michelena, H.I., Corte, A. della, Evangelista, A., Maleszewski, J.J., Edwards, W.D., Roman, M.J., Devereux, R.B., Fernandez, B., Asch, F.M., Barker, A.J., Sierra-Galan, L.M., Kerchove, L. de, Fernandes, S.M., Fedak, P.W.M., Girdauskas, E., Delgado, V., Abbara, S., Lansac, E., Prakash, S.K., Bissell, M.M., Popescu, B.A., Hope, M.D., Sitges, M., Thourani, V.H., Pibarot, P., Chandrasekaran, K., Lancellotti, P., Borger, M.A., Forrest, J.K., Webb, J., Milewicz, D.M., Makkar, R., Leon, M.B., Sanders, S.P., Markl, M., Ferrari, V.A., Roberts, W.C., Song, J.K., Blanke, P., White, C.S., Siu, S., Svensson, L.G., Braverman, A.C., Bavaria, J., Sundt, T.M., Khoury, G. el, Paulis, R. de, Enriquez-Sarano, M., Bax, J.J., Otto, C.M., Schafers, H.J., Endorsed Heart Valve Soc HVS, European Assoc Cardiovasc Imaging, Soc Thoracic Surg STS, Amer Assoc Thoracic Surg AATS, Soc Cardiovasc Magnetic Resonance, Soc Cardiovasc Computed Tomography, North Amer Soc Cardiovasc Imaging, Int Bicuspid Aortic Valve Consorti, UCL - SSS/IREC/CARD - Pôle de recherche cardiovasculaire, UCL - (SLuc) Service de chirurgie cardiovasculaire et thoracique, Michelena, H. I., Della Corte, A., Evangelista, A., Maleszewski, J. J., Edwards, W. D., Roman, M. J., Devereux, R. B., Fernandez, B., Asch, F. M., Barker, A. J., Sierra-Galan, L. M., De Kerchove, L., Fernandes, S. M., Fedak, P. W. M., Girdauskas, E., Delgado, V., Abbara, S., Lansac, E., Prakash, S. K., Bissell, M. M., Popescu, B. A., Hope, M. D., Sitges, M., Thourani, V. H., Pibarot, P., Chandrasekaran, K., Lancellotti, P., Borger, M. A., Forrest, J. K., Webb, J., Milewicz, D. M., Makkar, R., Leon, M. B., Sanders, S. P., Markl, M., Ferrari, V. A., Roberts, W. C., Song, J. -K., Blanke, P., White, C. S., Siu, S., Svensson, L. G., Braverman, A. C., Bavaria, J., Sundt, T. M., El Khoury, G., De Paulis, R., Enriquez-Sarano, M., Bax, J. J., Otto, C. M., Schafers, H. -J., Michelena, Hector I, Corte, Alessandro Della, Evangelista, Arturo, Maleszewski, Joseph J, Edwards, William D, Roman, Mary J, Devereux, Richard B, Fernández, Borja, Asch, Federico M, Barker, Alex J, Sierra-Galan, Lilia M, De Kerchove, Laurent, Fernandes, Susan M, Fedak, Paul W M, Girdauskas, Evalda, Delgado, Victoria, Abbara, Suhny, Lansac, Emmanuel, Prakash, Siddharth K, Bissell, Malenka M, Popescu, Bogdan A, Hope, Michael D, Sitges, Marta, Thourani, Vinod H, Pibarot, Phillippe, Chandrasekaran, Krishnaswamy, Lancellotti, Patrizio, Borger, Michael A, Forrest, John K, Webb, John, Milewicz, Dianna M, Makkaar, Raj, Leon, Martin B, Sanders, Stephen P, Markl, Michael, Ferrari, Victor A, Roberts, William C, Song, Jae-Kwan, Blanke, Philipp, White, Charles S, Siu, Samuel, Svensson, Lars G, Braverman, Alan C, Bavaria, Joseph, Sundt, Thoralf M, El Khoury, Gebrine, De Paulis, Ruggero, Enriquez-Sarano, Maurice, Bax, Jeroen J, Otto, Catherine M, and Schäfers, Hans-Joachim

Subjects
Statement (logic), Predictive Value of Test, Computed tomography, 030204 cardiovascular system & hematology, Congenital Aortic Valve Insufficiency, 0302 clinical medicine, Bicuspid aortic valve, Bicuspid Aortic Valve Disease, 030212 general & internal medicine, Nomenclature, Aorta, medicine.diagnostic_test, General Medicine, Anatomy, Prognosis, Classification, Phenotype, Aortic Valve, cardiovascular system, Cardiology and Cardiovascular Medicine, Key Words, Human, Pulmonary and Respiratory Medicine, congenital, hereditary, and neonatal diseases and abnormalities, medicine.medical_specialty, Consensus, Prognosi, education, Aortic Diseases, Consensu, Aortography, 03 medical and health sciences, Bicuspid valve, Predictive Value of Tests, Terminology as Topic, Aortopathy, medicine, Humans, Radiology, Nuclear Medicine and imaging, cardiovascular diseases, Special Report, Cardiac Imaging Technique, business.industry, General surgery, Systematized Nomenclature of Medicine, Forme fruste, nomencla-ture, Aortic Valve Stenosis, Aortic Disease, medicine.disease, Aortic Valve Stenosi, Cardiac Imaging Techniques, Cusp (anatomy), Surgery, business
Abstract

This International Consensus Classification and Nomenclature for the congenital bicuspid aortic valve condition recognizes 3 types of bicuspid valves: 1. The fused type (right-left cusp fusion, right-non-coronary cusp fusion and left-non-coronary cusp fusion phenotypes); 2. The 2-sinus type (latero-lateral and antero-posterior phenotypes); and 3. The partial-fusion (forme fruste) type. The presence of raphe and the symmetry of the fused type phenotypes are critical aspects to describe. The International Consensus also recognizes 3 types of bicuspid valve-associated aortopathy: 1. The ascending phenotype; 2. The root phenotype; and 3. Extended phenotypes. © 2021 Jointly between the RSNA, the European Association for Cardio-Thoracic Surgery, The Society of Thoracic Surgeons, and the American Association for Thoracic Surgery. The articles are identical except for minor stylistic and spelling differences in keeping with each journal's style. All rights reserved. Keywords: Bicuspid Aortic Valve, Aortopathy, Nomenclature, Classification.

Published
2021

4. Bovine aortic arch: a novel association with thoracic aortic dilation.

Author

Malone CD, Urbania TH, Crook SE, and Hope MD

Subjects
Adult, Aged, Female, Humans, Male, Middle Aged, Retrospective Studies, Aorta, Thoracic abnormalities, Aorta, Thoracic diagnostic imaging, Aortic Aneurysm, Thoracic diagnostic imaging, Aortic Aneurysm, Thoracic etiology, Tomography, X-Ray Computed
Abstract

Aim: To investigate whether there is a link between bovine arch and thoracic aortic aneurysm., Materials and Methods: Computed tomography (CT) and magnetic resonance imaging (MRI) images of the thorax of 191 patients with dilated thoracic aortas and 391 consecutive, unselected patients as controls were retrospectively reviewed. Bovine arch was considered present if either a shared origin of the left common carotid and innominate arteries or an origin of the left common carotid from the innominate artery was identified. A chi-square test was used to evaluate the significance of differences between subgroups., Results: A trend towards increased prevalence of bovine arch was seen in patients with dilated aortas (26.2%) compared to controls (20.5%, p=0.12). The association was statistically significant in patients over 70 years old (31.9%, p=0.019) and when dilation involved the aortic arch (47.6%, p=0.003)., Conclusions: An association between bovine arch and aortic dilation is seen in older patients, and when dilation involves the aortic arch. Bovine arch should be considered a potential risk factor for thoracic aortic aneurysm., (Copyright © 2011 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.)

Published
2012
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5. Complete intracranial arterial and venous blood flow evaluation with 4D flow MR imaging.

Author

Hope MD, Purcell DD, Hope TA, von Morze C, Vigneron DB, Alley MT, and Dillon WP

Subjects
Humans, Image Processing, Computer-Assisted, Arteriovenous Malformations diagnosis, Arteriovenous Malformations physiopathology, Cerebral Arteries physiology, Cerebral Veins physiology, Cerebrovascular Circulation physiology, Magnetic Resonance Angiography methods
Abstract

Summary: Time-resolved, 3D velocity-encoded MR imaging (4D Flow) allows for the acquisition of dynamic, multidirectional data on blood flow and has recently been used for the evaluation of intracranial arterial flow. Using a 3T system with optimization of both temporal resolution and k-space subsampling with a combination of parallel imaging and cut-corner acquisition, we present the clinical assessment of a patient with an arteriovenous malformation by providing complete intracranial arterial and venous coverage in a reasonable scan time.

Published
2009
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