Spontaneous silent myocardial ischemia assessed by technetium-99m-sestamibi imaging.
We report on an 80-yr-old patient with a history of inferior myocardial infarction. The patient was injected with 15 mCi of 99mTc-sestamibi when an electrocardiogram revealed new asymptomatic inferolateral ST-segment depressions. A second 99mTc study was performed 72 hr after the initial injection and after ST-segment changes had resolved. Scintigraphic acquisitions using SPECT revealed a large reduction in photon activity in the inferolateral and inferoposterior walls with 70%-80% normalization. Therefore, 99mTc-sestamibi imaging is useful in assessing asymptomatic silent myocardial ischemia.
Samman
B
B
Division of Cardiology, Memorial Hospital of Rhode Island, Pawtucket 02860.
Hahn
S D
SD
Messinger
D E
DE
Heller
G V
GV
D000368:Aged; D000369:Aged, 80 and over; D004562:Electrocardiography; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D009203:Myocardial Infarction / Q000150:complications; D017202:Myocardial Ischemia / Q000150:complications / Q000000981:diagnostic imaging* / Q000503:physiopathology; D011877:Radionuclide Imaging; D017256:Technetium Tc 99m Sestamibi
D017256:Technetium Tc 99m Sestamibi