Results 1 to 10 of about 11,269 (227)

Morphometry and topography of the coronary ostia in the dog [PDF]

open access: yesJournal of Veterinary Research, 2023
The purpose of this study was to perform a morphometric examination of the coronary ostia, including their location in the area of the aortic sinuses, and to describe variations in ostia structure in the domestic dog.
Barszcz Karolina   +5 more
doaj   +4 more sources

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

open access: yesSensors, 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.
Yeonggul Jang, Byunghwan Jeon
doaj   +2 more sources

Morphometric and topographic study of coronary ostia [PDF]

open access: yesArquivos 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   +2 more
doaj   +5 more sources

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

open access: yesPLoS 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   +7 more
doaj   +2 more sources

Absent Left Main Coronary Artery with Separate Origin of Left Anterior Descending Artery and Left Circumflex Artery from Left Coronary Sinus [PDF]

open access: yesMethodist DeBakey Cardiovascular Journal
We report a case of a 49-year-old female who presented with atypical chest pain. An electrocardiogram-gated coronary computed tomography angiography revealed the absence of the left main coronary artery segment with direct origin of the left anterior ...
Damandeep Singh   +2 more
doaj   +2 more sources

Morphometry and topography of the coronary ostia in the European bison

open access: yesFolia 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   +5 more
doaj   +3 more sources

Coronary ostia obstruction after replacement of aortic valve prostesis [PDF]

open access: yesDiagnostic Pathology, 2011
Aortic valve replacement (AVR) is the gold standard for the treatment of severe symptomatic aortic stenosis. Complications directly related to surgical procedure are relatively infrequent.
Emanuela Turillazzi   +5 more
core   +6 more sources

Optimal Fluoroscopic Projections of Coronary Ostia and Bifurcations Defined by Computed Tomographic Coronary Angiography

open access: yesJACC: Cardiovascular Interventions, 2020
The aim of this study was to define the optimal fluoroscopic viewing angles of both coronary ostia and important coronary bifurcations by using 3-dimensional multislice computed tomographic data.Optimal fluoroscopic projections are crucial for coronary imaging and interventions.
Tian-Yuan Xiong   +2 more
exaly   +3 more sources

Papillary Fibroelastoma of the Aortic Root Causing Intermittent Coronary Ostial Obstruction: The Diagnostic Power of 3D Transesophageal Echocardiography [PDF]

open access: yesDiagnostics
We describe a patient with recurrent, brief episodes of chest discomfort caused by a highly mobile papillary fibroelastoma originating from the aortic wall and intermittently encroaching on the right coronary artery ostium.
Tina Bečić   +2 more
doaj   +2 more sources

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

open access: yesJournal 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   +2 more
doaj   +1 more source

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