Supine and prone SPECT Tc-99m MIBI myocardial perfusion imaging for dipyridamole studies

Aartifactual inferior wall defects of perfusion are a source of frequent concern during TI-201 exercise stress redistribution SPECT imaging in the supine position. These artifactual changes also affect Tc-99m sestamibi dipyridamole myocardial perfusion studies with supine SPECT yielding a specificit...

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Bibliographic Details
Published inClinical nuclear medicine Vol. 20; no. 8; p. 674
Main Authors Lisbona, R, Dinh, L, Derbekyan, V, Novales-Diaz, J A
Format Journal Article
LanguageEnglish
Published United States 01.08.1995
Subjects
Adult
Aged
Aged, 80 and over
Coronary Disease - diagnostic imaging
Coronary Disease - physiopathology
Dipyridamole
Female
Humans
Male
Middle Aged
Prone Position
Supine Position
Technetium Tc 99m Sestamibi
Tomography, Emission-Computed, Single-Photon
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Summary:Aartifactual inferior wall defects of perfusion are a source of frequent concern during TI-201 exercise stress redistribution SPECT imaging in the supine position. These artifactual changes also affect Tc-99m sestamibi dipyridamole myocardial perfusion studies with supine SPECT yielding a specificity of only 58% for right coronary artery (RCA) disease. Complementary SPECT prone imaging will enhance this specificity for inferior wall abnormalities to 79% (P < 0.05) and is recommended for more accurate assessment of RCA stenosis, whether the patient challenge is pharmacological or by exercise.
ISSN:0363-9762
DOI:10.1097/00003072-199508000-00002