Artifactual reverse distribution pattern in myocardial perfusion SPECT with technetium-99m sestamibi

Abstract

RDP is a frequently encountered artifact in obese patients undergoing rest/stress Tc-99m sestamibi SPECT, particularly in men with abdominal protuberance and in women with large, dense breasts.

Myocardial Injury without Electrocardiographic Changes after a Suicide Attempt by an Overdose of Glimepiride and Zolpidem: A Case Report and Literature Review

“…This phenomenon may be observed at a mixture of viable and well-perfused myocardium in the infarct areas (30). However, other previous studies suggested that this was just a technical artifact (31,32). In any case, this is the first scintigraphic image study after this rare cause and further investigations of its significance are required.…”

Investigation of the mechanism of reverse redistribution in thallium-201 myocardial perfusion scintigraphy in patients with suspicion for coronary artery spasm

“…Technical error was the main explanation of RR in the early years. 6 However, this error can be eliminated by standardized scanning and image processing procedure. Recently, there has been greater evidence showing the relationship of RR and coronary artery disease, and other cardiac entities such as myocardial infarction, hypertension, hypertrophic myocardiopathy.…”

Method for coronary angiography in morbidly obese patients

“…Determining the medical readiness of extremely obese patients for surgery therefore may become an increasingly common clinical problem. When obese patients report chest pain, noninvasive imaging may be difficult to achieve due to equipment weight limitations [10], and the test performance characteristics of scintigraphic imaging in this patient group are significantly degraded [10–13]. These factors are likely to result in increasingly frequent requests to perform coronary angiography.…”