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Higher Event Rate In Patients With Known Cad Despite A Normal Myocardial Perfusion Scan, Maseeh Uz Zaman, Nosheen Fatima
Higher Event Rate In Patients With Known Cad Despite A Normal Myocardial Perfusion Scan, Maseeh Uz Zaman, Nosheen Fatima
Department of Radiology
Abstract
OBJECTIVE:
The negative predictive value of a normal single-photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI) is very high. However, prognostic implication of a normal SPECT MPI in patients with known coronary artery disease (CAD) is not clear. Objective of this study was to evaluate the cardiac event rate in patients with known CAD who had a normal stress SPECT MPI.
METHODS:
This prospective study accrued 428 consecutive patients with a history of CAD [revascularization or previous myocardial infarction (MI)] who had a normal stress (dynamic exercise or dipyridamole intervention) and rest Tc-99m-MIBI SPECT MPI. These patients were …