![]() Patients with normal coronary and mild stenosis contributed to total of 51(80%) patients, Patients with moderate and severe stenosis 13 (20%). CCTA: Normal Coronary arteries: 46 (72%) patients, Mild stenosis 5 (8%) patients, Moderate stenosis: 7(11%) patients, and more than 75%: 6 (9%) patients. Results: Probably normal/ abnormal MP-SPECT: 23 (36%) patients, abnormal function with normal MP-SPECT: 10 patients (16%), equivocal and /or non-diagnostic: 31 (48%) patients. MP-SPECT result was classified into 3 categories: Probably normal or probably abnormal, Abnormal function and normal myocardial perfusion, and equivocal or non-diagnostic. Methods: 64 patients were with suspected CAD were enrolled in this study, the mean age was 51 ± 24 years, 36 (56%) male and 28 (44%) female. The goal of the study is to investigate the diagnostic value of CTCA after non-diagnostic, equivocal, and or borderline abnormal MP-SPECT. Computed Tomography coronary angiography (CTCA) has high diagnostic accuracy and excellent negative predicted value. However, Infrequently, MP-SPECT is non-diagnostic or equivocal. Background: Myocardial perfusion single- photon emission computed tomography (MP-SPECT) plays a key role in the management of patients with known or suspected coronary artery disease (CAD). ![]()
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