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5 de jun. de 2023 · The figure shows a cross-section of a coronary artery and summarizes the different coronary stenosis and atherosclerosis imaging targets and the appropriateness of each imaging modality for...
7 de jul. de 2017 · Methods and Results—. In 1382 coronary stenoses (1104 patients), percent diameter stenosis by visual estimation (DS VE) and by quantitative coronary angiography (DS QCA) was compared with FFR. Patients were divided into 4 subgroups, according to the presence of RFs, and the relationship between DS VE, DS QCA, and FFR was analyzed.
30 de nov. de 2021 · One of the key issues during stenosis evaluation is the quantification of the degree of stenosis. This may be performed either visually (visual estimation–VE) or using dedicated software packages for quantitative coronary angiography (QCA) to estimate the degree of diameter stenosis (DS).
21 de may. de 2013 · The major epicardial coronary arteries (left main trunk, left anterior descending, left circumflex branches, and right coronary artery) were visually inspected with respect to their origin and course, and cut transversely at 2-mm intervals to the severity of artery stenosis by 2 experienced pathologists, using American Heart ...
Diagnostically, coronary CTA-derived atherosclerotic plaque features improve identification of ischemia through quantitative determination of aggregate plaque volume, low attenuation (hypodense) plaques (LAPs), positive arterial remodeling and spotty calcifications (5,6).
Introduction. If we could excise a stenosed epicardial vessel from 1 patient and implant it in another patient with a larger or a smaller heart (e.g., as a result of body size), would the fractional flow reserve (FFR) value change?
28 de dic. de 2021 · Volume of contrast and flow are the same of standard views. As for native CA, the ostium, body, and distal anastomosis should be interrogated during bypass graft angiography. Two orthogonal views of each segment should be obtained.
