Non-invasive CT angiography of the coronary arteries is a challenging and rapidly advancing technique. Electron beam tomography initially permitted the non-invasive visualization of coronary arteries and detection of stenoses. Multidetector CT provides very high spatial resolution and allows for excellent ...
Pre-operative assessment of persons scheduled to undergo 'high-risk" non-cardiac surgery, where an imaging stress test or invasive coronary angiography is being deferred unless absolutely necessary; the ACC defines high-risk surgery as emergent operations, especially in the elderly, aortic and other ...
Non-invasive CT angiography of the coronary arteries is a challenging and rapidly advancing technique. Electron beam tomography initially permitted the non-invasive visualization of coronary arteries and detection of stenoses. Multidetector CT provides very high spatial resolution and allows for excellent ...
Fundamentally, cardiac imaging is a straightforward extension of the principles underpinning stationary vessel CT angiography (CTA), though the beating heart introduces some new issues for data acquisition and processing. Although the application of mechanical helical CT for coronary imaging ...
There are a variety of protocols for image acquisition in the evaluation of patients after CABG surgery. In many respects, the protocol is similar to that for coronary CT angiography (CTA). One important difference is that the scan should be extended superiorly to include the origins of the in...
冠状动脉CT血管成像(coronary computed tomography angiography,CCTA)广泛用于评估疑似但尚未确诊的冠心病患者,并且检测冠状动脉狭窄具有较高的敏感度和特异度,已成为目前诊断冠心病最常用的无创方法[2]。与“金标准”侵入性冠状动脉造影(invasiv...
In the last one and a half decades Computed Tomography Coronary Angiography (CTCA) has emerged as modality for imaging of the coronary arteries of the heart. A non-enhanced scan shows the total amount of coronary calcium; while a contrast-enhanced CT coronary angiography permits evaluation of ...
Non-invasive imaging:Cardiac CT beyond coronary angiography: current and emerging non-coronary cardiac applications Within the last decade, non-invasive assessment of the coronary arteries using multidetector computed tomography (MDCT) has emerged as the newest applicati... Milind,Y,Desai - 《Heart Of...
Coronary computed tomography angiography (CTA) provides high resolution, non-invasive visualization of the coronary arteries and coronary atherosclerosis. Recent technologic advances in coronary CTA image acquisition and reconstruction have dramatically reduced patient radiation exposure to relatively low levels ...
of CT for assessment of myocardial perfusion and cardiac event risk. Among the clinical applications of cardiac CT, coronary CT angiography (cCTA) remains the most widespread and most controversial. Numerous studies suggest that cCTA is a cost-effective alternative to the nuclear stress test and ...