نتایج جستجو برای: coronary artery anatomy
تعداد نتایج: 394722 فیلتر نتایج به سال:
Intercoronary arterial connection between normal coronary arteries is a rare variant of coronary anatomy in which there is open-ended circulation. It is distinguished from collaterals seen in the occlusive coronary artery disease. We report a case of bidirectional intercoronary communication between the left circumflex artery and the right coronary artery without occlusive coronary artery disea...
Introduction: The human heart is vascularised by the Third coronary artery apart from the right and the left coronary arteries. The Third coronary artery, also called Supernumerary coronary artery takes origin from the anterior aortic sinus of the heart. It plays a significant role in collateral circulation of heart in conditions of chronic hypoxia. Aim: The aim of the study is to delineate dif...
It has previously been reported that the length of the left main coronary artery is short in patients with left bundle branch block (LBBB) and that an unexpectedly large number of LBBB patients had dominant left coronary arterial distribution. The present coronary arteriographic study of 13 patients with LBBB revealed a mean length of the left main coronary artery (+ 1 SD) of 10.9 + 6.0 mm, a m...
The anatomy of the coronary vessels has been described in detail for atleast 3 centuries. Detailed appreciation of the normal origin, course, branching and myocardial distribution of these vessels is vital so that variations of the normal anatomy can be more easily recognized and applied to clinical practice. Knowledge of normal anatomy and variations in the branching pattern of coronary arteri...
Recent technical advances in computed tomography (CT) have improved image quality, diagnostic performance and accuracy of coronary CT angiography (CCTA). Latest dose-reduction strategies reduce radiation dose to an acceptable level even lower than that from conventional coronary angiography. CCTA is a noninvasive imaging modality which can effectively show complex coronary artery anatomy, varia...
a double left anterior descending (lad) coronary artery emerging from the left and right coronary arteries is classified among rare coronary anomalies. we herein report a 73-year-old man presenting with acute coronary syndrome (posterolateral myocardial infarction). he was admitted with typical chest pain, and due to his progressive ischemic changes on electrocardiography (ecg) and elevated car...
BACKGROUND Coronary artery anomalies are rare, accounting for about 0.3-1.3% of patients undergoing diagnostic coronary angiography. Interventions in these cases are still rare, and therefore pose technical challenges during intervention. CT Angiography provides a non-invasive means of assessment of coronary artery disease and also shows the anatomy of the coronary tree. This helps in knowing t...
Coronary artery ectasia (CAE) is an abnormality of the coronary anatomy and might be a variant of the Coronary Artery Disease (CAD). The CAE can cause angina pectoris and even MI with vasospasm, dissection, or thrombus in patients without CAD. Isolated CAE is defined as CAE without significant coronary artery stenosis. The mechanisms responsible for ectasia formation are not clearly known. Howe...
Background: Knowledge of the normal and variant anatomy and anomalies of coronary circulation is an increasingly vital component in the management of congenital and acquired heart disease. Anatomical variations in relation to coronary artery and its branches will help cardiac surgeons for refining imaging techniques and coronary artery bypass grafting. The current study is aimed at understandin...
The anatomy of the proximal left coronary artery in 33 adult patients with bicuspid aortic valves was compared with that in 33 adult patients with aortic valve disease of other aetiologies and with that in 50 adult control patients with no valve or congenital heart disease. Patients with bicuspid aortic valves had a higher incidence of immediate bifurcation of the left main coronary artery, of ...
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