Visual assessment of coronary artery stenosis with electrocardiographically-gated multislice computed tomography

Abstract

MSCT was feasible for the detection of coronary artery stenosis.

Clinical usefulness of novel cardiac MDCT/SPECT fusion image

“…The CTA has emerged as an alternative to invasive coronary angiography with good diagnostic accuracy in selected patients [4,5]. Observation from 64-slice CTA provides high-quality noninvasive coronary arteriogram that accurately delineates the presence or absence of significant stenotic lesion within entire coronary trees [4,5].…”

“…A bolus of contrast agent (Iomeron350, Eisai Co., Ltd, Japan) was continuously injected into antecubital vein. ECG-gated image reconstruction methods have been described previously [5,13]. Sublingual nitroglycerin (0.3mg) was administered 5 min prior to the scan.…”

“…The assessment was applied to the four major coronary arteries. The four major coronary epicardial arteries were assessed as having hemodynamically significant coronary artery stenosis (>50% in diameter) or not [5].…”

“…This positioning also did not change until a later interpretation of fusion imaging in principle. The CT fusion software is capable of combining extracted vascular trees with QPS quantitative 3-dimensional surface perfusion maps [5].…”

“…advances in computed tomography angiography (CTA) have made it possible to identify atherosclerotic lesions in coronary vessels [4][5]. A physician then views SPECT images and integrates mentally myocardial perfusion imaging (MPI) and anatomical imaging such as CTA or coronary angiography [6][7].…”