Identification of severe right ventricular dysfunction by technetium-99m-sestamibi gated SPECT imaging.
An 84-yr-old man with previous anterior wall myocardial infarction presented with shortness of breath and palpitations. His symptoms were attributed to myocardial ischemia, and he was referred for a stress 99mTc-sestamibi SPECT imaging study with gating. The images showed minimal left ventricular ischemia, but a dilated and hypokinetic right ventricle suggested pulmonary pathology as the probable etiology of his presenting symptoms. A subsequent ventilation perfusion study was consistent with the diagnosis of multiple pulmonary emboli. Thus, 99mTc-sestamibi SPECT imaging with gating provides information about right ventricular perfusion and function, enhancing the clinical utility of stress myocardial perfusion imaging.
Pereira
N
N
Department of Medicine, Roger Williams Medical Center, Providence, RI 02908, USA.
Klutz
W S
WS
Fox
R E
RE
Ahn
K W
KW
Travin
M I
MI
D000368:Aged; D000369:Aged, 80 and over; D004562:Electrocardiography; D015637:Gated Blood-Pool Imaging; D006801:Humans; D008297:Male; D017202:Myocardial Ischemia / Q000000981:diagnostic imaging / Q000209:etiology; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging* / Q000503:physiopathology; D017256:Technetium Tc 99m Sestamibi; D015899:Tomography, Emission-Computed, Single-Photon / Q000379:methods; D018497:Ventricular Dysfunction, Right / Q000000981:diagnostic imaging* / Q000209:etiology
D017256:Technetium Tc 99m Sestamibi