Results 1 to 10 of about 213 (91)

Deep Reinforcement Learning with Explicit Spatio-Sequential Encoding Network for Coronary Ostia Identification in CT Images

Sensors, 2021
Accurate identification of the coronary ostia from 3D coronary computed tomography angiography (CCTA) is a essential prerequisite step for automatically tracking and segmenting three main coronary arteries.
Yangsoo Jang, Byunghwan Jeon, Jeon Byunghwan   +2 more
exaly   +3 more sources

Morphometric and topographic study of coronary ostia

Arquivos Brasileiros De Cardiologia, 2003
OBJECTIVE: To investigate the morphometric and topographic aspects of coronary ostia, correlating them with the aortic leaflets. METHODS: Fifty-one hearts with the great vessels attached were analyzed in this study.
Jennecy Sales Cavalcanti, Natália Corrêa Vieira de Melo, Renata Simões de Vasconcelos   +2 more
exaly   +3 more sources

Morphometry of the coronary ostia and the structure of coronary arteries in the shorthair domestic cat [PDF]

PLoS ONE, 2017
The aim of this study was to measure the area of the coronary ostia, assess their localization in the coronary sinuses and to determine the morphology of the stem of the left and right coronary arteries in the domestic shorthair cat.
Karolina Barszcz, Michał Polguj, Joanna Klećkowska-Nawrot   +2 more
exaly   +2 more sources

A Cross-sectional Study of Anatomical Variations of Coronary Ostia in the Adult Human Hearts and its Clinical Significance [PDF]

Journal of Clinical and Diagnostic Research, 2021
Introduction: The knowledge of anatomical variations of the coronary ostia is an important factor in the study of Coronary Heart Disease (CHD). With the adaptation of sedentary life style and increasing stress, CHD has become the major cause of death
NAJMA MOBIN, H BASAVANAGOWDAPPA, B MADHU   +2 more
doaj   +1 more source

Prevalence of Coronary and Extracoronary Ostia in Southern Rajasthan: A Cadaveric Study [PDF]

International Journal of Anatomy Radiology and Surgery, 2022
Introduction: A variable incidence of additional coronary ostia or third coronary ostia is found along right ostium in the Anterior Aortic Sinus (AAS).
Shiv Kumar Sharma, Pratima Jaiswal, Aarushi Jain, Gulam Rasool   +3 more
doaj   +1 more source

Definition of trAnscatheter heart Valve orIeNtation in biCuspId aortic valve: The DA VINCI pilot study

Frontiers in Cardiovascular Medicine, 2022
ObjectivesTo assess the impact of conventional transcatheter heart valve (THV) commissural alignment techniques on THV/coronary overlap and coronary access (CA) after transcatheter aortic valve replacement (TAVR) in bicuspid aortic valve (BAV ...
Giuseppe Tarantini, Tommaso Fabris, Luca Nai Fovino, Francesco Cardaioli, Valeria Pergola, Carolina Montonati, Giulio Rodinò, Giulio Cabrelle, Mauro Massussi, Mauro Massussi, Andrea Scotti, Andrea Scotti, Vittorio Zuccarelli, Tommaso Sciarretta, Giulia Masiero, Dario Gregori, Massimo Napodano, Chiara Fraccaro, Saverio Continisio, Sabino Iliceto   +19 more
doaj   +1 more source

Case Report: Double chimney in valve-in-valve procedures for high-risk coronary obstruction

Frontiers in Cardiovascular Medicine, 2023
The chimney technique has been utilized to minimize the risk of coronary artery obstruction during valve-in-valve procedures. Here, we present a case involving an 89-year-old female patient with low coronary ostia, severe aortic regurgitation, and ...
Selma T. Cook, Mario Togni, Stéphane Cook   +2 more
doaj   +1 more source

Late presentation of iatrogenic dissection of right coronary cusp: A case report [PDF]

Journal of Cardiovascular and Thoracic Research, 2020
Iatrogenic dissection of coronary arteries while performing catheter engagement, in general is not uncommon. However, we encountered a relatively rare case of iatrogenic right coronary cusp dissection.Here we report an iatrogenic coronary artery ...
Ali Eshraghi, Majid Jalalyazdi, Javad Ramezani, Mostafa Baburian   +3 more
doaj   +1 more source

Optimal fluoroscopic viewing angles for stenting of the coronary aorto-ostial lesions

Cardiology Journal, 2021
BACKGROUND: Long-term results after stenting aorto-coronary ostial lesions (AOL) are worse than those achieved in non-ostial locations. AOL interventions still pose a substantial challenge for interventional cardiologists.
Radosław Targoński, Jarosław Meyer-Szary, Bartosz Baścik, Edyta Szurowska, Aleksandra Gąsecka, Dariusz Jagielak, Miłosz J. Jaguszewski   +6 more
doaj   +1 more source

Morphometry and topography of the coronary ostia in the European bison

Folia Morphologica, 2020
Background: Coronary vessels have been widely studied in many species of domestic and wild mammals. However, there are no available literature reports describing the morphology and morphometry of the coronary ostia of the European bison (Bison bonasus ...
K. Barszcz, M. Polguj, J. Klećkowska-Nawrot, K. Goździewska-Harłajczuk, K. Olbrych, M. Czopowicz   +5 more
doaj   +1 more source