Results 191 to 200 of about 50,552 (211)
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Coronary In-Stent Restenosis: Assessment with CT Coronary Angiography
Radiology, 2012To compare accuracy and radiation exposure of a new computed tomographic (CT) scanner with improved spatial resolution (scanner A) with those of a CT scanner with standard spatial resolution (scanner B) for evaluation of coronary in-stent restenosis (ISR) by using invasive coronary angiography (ICA) and intravascular ultrasonography (US) as reference ...
D. Andreini +14 more
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Multislice CT in cardiac and coronary angiography
The British Journal of Radiology, 2004In the last 2 years, mechanical multidetector-row CT (MDCT) systems with simultaneous acquisition of four slices and a half second scanner rotation time have become widely available. Data acquisition with these scanners allows for considerably faster coverage of the heart volume compared with single slice scanning. This increased scan speed can be used
A F, Kopp +5 more
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Prognostic Value of Coronary CT Angiography
Cardiology Clinics, 2012Coronary computed tomography angiography (CTA) is a highly accurate noninvasive test that is increasingly used in symptomatic patients primarily for the diagnosis of coronary artery disease (CAD). Beyond its proven accuracy, data have now clearly demonstrated the incremental prognostic information available from coronary CTA related to the presence ...
Michael K, Cheezum +5 more
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The Prognostic Significance of Coronary CT Angiography
Current Cardiology Reports, 2011Coronary computed tomography angiography (CTA) is an increasingly utilized, highly accurate noninvasive test for the diagnosis of coronary artery disease. Accumulating data have convincingly demonstrated that the presence, extent, and location of both obstructive and nonobstructive coronary atherosclerosis visualized on coronary CTA conveys powerful ...
Kevin M, Woods +5 more
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2006
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 visualization of the coronary arteries ...
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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 visualization of the coronary arteries ...
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Coronary vasospasm during CT angiography
Journal of Cardiovascular Computed Tomography, 2014A 71-year-old man, a heavy smoker, was admitted for evaluation of "chest oppression" after every dinner. Cardiac CT with a beta-blocker showed coronary stenosis in the left circumflex. Although adenosine triphosphate-stress perfusion single-photon emission CT revealed no ischemia, Holter electrocardiography belatedly indicated an ST elevation ...
Takehiro Nakahara +3 more
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Coronary CT versus MR Angiography: Pro CT—The Role of CT Angiography
Radiology, 2011Because of its better diagnostic performance, coronary CT angiography is currently preferable to MR angiography for clinical use, despite its radiation exposure and administration of an iodinated contrast agent.
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Diagnostic Accuracy of CT Coronary Angiography
Cardiology Clinics, 2009There is a rich and rapidly growing literature on the diagnostic utility of coronary CT angiography (CTA) and its performance relative to other modalities such as stress testing and invasive coronary angiography. Earlier studies of 16-slice coronary CTA showed wide variability in sensitivity (30%-95%) and some variability in specificity (86%-98%). With
Divya, Kapoor, Randall C, Thompson
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2007
Direct visualization of the epicardial coronary arteries is currently the reference standard to confirm the presence or focal severity of coronary luminal disease, or both. For more than 50 years1 the coronary angiogram has been used to define epicardial coronary disease. While conventional coronary arteriography provides exceptional spatial resolution
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Direct visualization of the epicardial coronary arteries is currently the reference standard to confirm the presence or focal severity of coronary luminal disease, or both. For more than 50 years1 the coronary angiogram has been used to define epicardial coronary disease. While conventional coronary arteriography provides exceptional spatial resolution
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Coronary CT angiography in symptomatic patients
European Radiology Supplements, 2005The currently best available spatial and temporal resolution for retrospectively ECG gated coronary multi-detector-row CT angiography is 0.4 mm and 165 ms, respectively. These acquisition parameters are already rather close to cardiac catheter. Studies so far compared non-invasive coronary CT and convention angiography for the detection of coronary ...
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