نتایج جستجو برای: coronary vessel anomalies
تعداد نتایج: 313166 فیلتر نتایج به سال:
Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a rare congenital cardiac malformation. We report three cases of ALCAPA who survived to adulthood. The first case was a 51-year-old woman who complained of typical chest pain that was diagnosed with ALCAPA using cardiac catheterization and coronary computed tomographic angiography (CTA). The second case was a 30-...
coronary heart disease has been one of the main threats of human health. coronary angiography is taken as the “gold standard” for the assessment of coronary artery disease. but sometimes, the images are difficult to interpret visually because of the crossing and overlapping of the vessels in the angiograms. vessel extraction from x-ray angiograms has been a challenging problem for several years...
Anatomical variations in the coronary arteries . II . Less prevalent variations : Coronary anomalies
With the introduction of new surgical procedures an the development of new techniques of cardiac imaging, the normal anatomy, variations and anomalies of coronary arteries have assumed new significance. The coronary arteries may present several variations, in terms of both number and position. The incidence of all coronary anomalies is 0.23% in autopsy series and ranges between 0.3% and 12% in ...
Coronary artery anomalies include anomalies of origin, termination, structure or course. Coronary artery fistulae (CAF) are classified as abnormalities of termination and are considered a major congenital anomaly. A coronary artery fistula involves a sizable communication between a coronary artery, bypassing the myocardial capillary bed and entering either a chamber of the heart (coronary-camer...
BACKGROUND AND OBJECTIVES It has been demonstrated that the anomalous origin of coronary arteries (AOCA) are generally asymptomatic and rare diseases. However, some cases can cause severe life threatening events. To detect these anomalies, coronary angiographies and autopsies were used to detect coronary artery anomalies, but these procedures have limitations because of their invasiveness. The ...
Objectives Coronary artery anomalies are uncommon, but important cardiac malformations, representing the second commonest cause of death in young athletes. Methods We utilized computerized tomographic angiography to screen and precisely delineate coronary artery anomalies in patients with minimal cardiac symptoms. Results During 3.5-year period, we performed 2888 computerized tomographic an...
Hemodynamically significant primary anomalies of the coronary arteries are those which alter myocardial perfusion. There are four major types: coronary artery fistulae, origin of the left coronary artery from the pulmonary artery, congenital coronary stenosis or atresia, and origin of the left coronary artery from the right sinus of Valsalva, with subsequent passage of the vessel between the ao...
Congenital coronary artery anomalies are of major significance in clinical cardiology and cardiac surgery due to their association with myocardial ischaemia and sudden death. Such anomalies are detectable by imaging modalities and, according to various definitions, their prevalence ranges from 0.21 to 5.79%. This consensus document from the Development, Anatomy and Pathology Working Group of th...
Introduction: Diabetes mellitus, hypertension, hyperlipidemia and cigarette smoking are major coronary artery disease risk factors. This study was performed to detect the correlation between major coronary risk factors and the number of diseased vessels in coronary angiography. Methods: This descriptive study was performed on 196 patients with coronary artery disease who underwent coronary ang...
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