Topic
Perfusion scanning
About: Perfusion scanning is a research topic. Over the lifetime, 9496 publications have been published within this topic receiving 223860 citations. The topic is also known as: perfusion imaging.
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TL;DR: It is concluded that exercise cross-sectional echocardiography is technically difficult but feasible and the mechanical consequences of exercise-induced regional myocardial ischemia can be detected noninvasively by real-time, two-dimensional, cross-sections echOCardiography.
Abstract: We performed cross-sectional echocardiograms at rest, during supine bicycle exercise, and after sublingual nitroglycerin administration in 28 patients suspected of having ischemic heart disease. Technically adequate exercise cross-sectional echocardiograms were obtained in 20 patients (71%). Ten patients had new areas of reversible segmental dysynergy, and all 10 had significant stenoses of coronary arteries supplying areas of the heart corresponding to the location of reversible dysynergy. Six of these 10 patients also underwent exercise thallium-201 perfusion scanning, and all six had reversible perfusion defects in the area that demonstrated reversible dysynergy on exercise cross-sectional echocardiography. At least two of the remaining 10 patients who did not have reversible segmental dysynergy on exercise cross-sectional echocardiography probably experienced myocardial ischemia that we did not detect. We conclude that exercise cross-sectional echocardiography is technically difficult but feasible. The mechanical consequences of exercise-induced regional myocardial ischemia can be detected noninvasively by real-time, two-dimensional, cross-sectional echocardiography.
241 citations
TL;DR: Higher overall scar burden, a larger number of severely scarred segments, and greater scar density near the LV lead tip portend an unfavorable response to CRT in ICM patients.
241 citations
238 citations
TL;DR: Technetium-99m sestamibi perfusion imaging is a promising technique for ruling out acute myocardial ischemia in the emergency room and more efficient utilization of intensive therapy beds may be expected with this approach.
238 citations
TL;DR: Echocardiographic contrast perfusion imaging aids in the differentiation of cardiac masses, with malignant and vascular tumors hyper-enhancing, whereas stromal tumors and thrombi hypo-enhanced.
236 citations