WebJan 29, 2024 · Soft tissue attenuation may result in an apparent fixed or reversible perfusion abnormality or defect. Fixed anatomic structures generally will produce the same attenuation artifact both on stress and rest imaging. Photon attenuation and the resultant artifacts are affected by several factors, including: Body habitus Depth of the heart in the ... WebMar 1, 2024 · Answer: “Attenuation artifact” observed in a nuclear stress test is due to the reduction in the intensity / strength of signal when it travels through various body tissues …
Interpretation and clinical management of patients with “Fixed ...
WebNov 8, 2011 · Clinical validation of SPECT attenuation correction using x-ray computed tomography–derived attenuation maps: multicenter clinical trial with angiographic correlation. J Nucl Cardiol 2005;12(6):676–686. Crossref, Medline, Google Scholar; 18 Burrell S, MacDonald A. Artifacts and pitfalls in myocardial perfusion imaging. WebJul 1, 2005 · It is known by many synonyms, including diaphragmatic artifact, inferior wall attenuation artifact, liver artifact, and others. 1 The usual appearance on myocardial single photon emission computed tomography (SPECT) studies using thallium 201 is of a cool or cold inferior wall in the known absence of true inferior wall hypoperfusion. low level supply current
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WebHad a nuc med scan and the left ventricle showed this."there is no significant motion during stress and rest imaging. there is moderate fixed perfusion defect in inferior wall with normal wall motion suggestive of diaphragmatic attenuation artifact."? Dr. Christopher Libby answered Emergency Medicine 6 years experience WebBackground: Apical thinning and other image changes at the apex have been described after attenuation correction of myocardial perfusion single photon emission computed tomography (SPECT) studies, but their clinical significance is unknown. WebNov 9, 2024 · Had a Nuc Med scan and the left ventricle showed this."There is no significant motion during stress and rest imaging. There is moderate fixed perfusion defect in … jasper custom filter expression