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 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.
Lisbona
R
R
Department of Nuclear Medicine, Royal Victoria Hospital, Montreal, Canada.
Dinh
L
L
Derbekyan
V
V
Novales-Diaz
J A
JA
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003327:Coronary Disease / Q000000981:diagnostic imaging* / Q000503:physiopathology; D004176:Dipyridamole; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D016684:Prone Position; D016683:Supine Position; D017256:Technetium Tc 99m Sestamibi; D015899:Tomography, Emission-Computed, Single-Photon
D004176:Dipyridamole; D017256:Technetium Tc 99m Sestamibi