نتایج جستجو برای: coronary vessel anomalies
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Coronary artery anomalies are found in 0.6% to 1.55% of patients who undergo coronary artery radiographic tomography [1-5] and the increasing use of diagnostic coronary angiography (CAG) is uncovering even more such abnormalities. Anomalous origin of the left main coronary artery (LMCA) from the right sinus of Valsalva is reported in 0.09% to 0.15% of cases [1-6]. Indeed, most coronary anomalie...
Coronary anomalies are rare, with a reported prevalence of 1.3% among patients who undergo coronary angiography. The great majority of coronary artery anomalies are incidental findings and are not clinically significant, but in some cases, may be responsible for angina, syncope, arrhythmias or even sudden death. In the following case, we describe coronary CT angiography findings of one of the r...
Congenital coronary artery anomalies are sporadically discovered in patients undergoing coronary angiography and in autopsy series. Although most anomalies are clinically insignificant, some may become causes of cardiovascular morbidities and mortality. Diagnosis is commonly made with conventional coronary artery angiography. The current development of modern cardiac computed tomography allows ...
Recent years have witnessed a change in our perception of congenital coronary artery anomalies. From being regarded as simple coronary angiographic observations of little clinical significance, they have come to be seen as potential causes of sudden death in young people and of myocardial ischemia in adults. Diagnostic difficulties, a lack of knowledge about the mechanisms through which they pr...
Advances in 64-row multidetector computed tomography have provided noninvasive imaging of coronary arteries. The aim of this study was to evaluate the prevalence of coronary artery anomalies in Iranian symptomatic patients and to determine the presence of anomalies resulting in myocardial ischaemia without atherosclerotic plaque. This study was carried out in Tabriz University of medical scienc...
A 46-year-old man with well-controlled hypertension presented with dyspnea, palpitations, and a murmur of aortic regurgitation. Echocardiography revealed a quadricuspid aortic valve (QAV) with 4 equal-sized cusps and enlarged left main coronary artery ostium (Figure 1A). On additional imaging, an unusual flow was seen entering the proximal main pulmonary artery from the lateral aspect just dist...
Segmentation is one of the major steps in the analysis of medical images, as it outputs the attributes extracted from the input images. The need for automated width detection lies in analyzing the presence or absence of specific anomalies. The paper presents the segmentation of the Coronary artery tree from the angiographic images. This is done by extracting or segmenting the vessels and thereb...
Discr iminat ion between an in terar te r ia l and intraseptal LMCA is important considering their different pathophysiological, surgical and prognostic implications3,4. The interarterial course carries the greatest risk for adverse repercussions among all coronary anomalies; it is linked to the proximal ectopic vessel, which is intussuscepted within the aortic wall media. In contrast, the intr...
Coronary artery anomalies are often discovered incidentally during cardiac catheterization or computed tomography coronary angiography and may involve the affected coronary artery origin and its course. Coronary artery anomalies are associated with congenital heart disease. The affected coronary arteries may have an unusual high take off origin, origin from contralateral or non-coronary sinus, ...
Coronary artery anomalies are uncommon, with a reported prevalence ranging from 0.2% to 1.6%. It is important that those who undertake coronary angiographic procedures are aware of the spectrum of these anomalies. Interventional percutaneous coronary revascularisation procedures are widely used in the management of patients with symptomatic coronary atherosclerosis. The presence of a coronary a...
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