Detection of a biphasic response of hibernating myocardium by dobutamine-stress electrocardiography-gated technetium-99m-tetrofosmin single photon emission computed tomography--a case report.
A woman with coronary artery disease underwent a new imaging technique: dobutamine-stress electrocardiography (ECG)-gated tetrofosmin-single photon emission computed tomography (SPECT). Dobutamine-stress ECG-gated tetrofosmin-SPECT with automatic left ventricular function analysis software programs detected improvement and a biphasic response of dysfunctional myocardium during dobutamine infusion, which suggested viable but hibernating myocardium. Dobutamine-stress ECG-gated tetrofosmin-SPECT with automatic left ventricular function analysis software programs has the potential to detect viable but dysfunctional myocardium with contractile reserve.
Yamagishi
H
H
First Department of Internal Medicine, Osaka City University Medical School, Osaka, Japan. hiroyuki@msic.med.osaka-cu.ac.jp
Akioka
K
K
Hirata
K
K
Sakanoue
Y
Y
Toda
I
I
Yoshiyama
M
M
Teragaki
M
M
Takeuchi
K
K
Yoshikawa
J
J
Ochi
H
H
D000368:Aged; D003327:Coronary Disease / Q000000981:diagnostic imaging*; D004280:Dobutamine; D004562:Electrocardiography; D005260:Female; D006801:Humans; D017682:Myocardial Stunning / Q000503:physiopathology*; D009943:Organophosphorus Compounds; D015609:Organotechnetium Compounds; D019275:Radiopharmaceuticals; D015899:Tomography, Emission-Computed, Single-Photon
D009943:Organophosphorus Compounds; D015609:Organotechnetium Compounds; D019275:Radiopharmaceuticals; D004280:Dobutamine; C078700:technetium tc-99m tetrofosmin