Comparison of results of myocardial perfusion scintigraphy, effort stress testing and coronary angiography

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Aim: Coronary artery disease is one of the most frequent causes of mortality and morbidity seen all over the world. In definite diagnosis of the atherosclerotic coronary artery stenosis, coronary angiography is used. In this study, additional contribution of the effort stress testing together with myocardial perfusion scintigraphy, which are noninvasive tests, to choose patients to coronary angiography. Materials and Methods: 101 patients (47 men, 54 women; mean age: 55 ± 10.95 year) were included into the study. In all patients 99m Tc-MIBI myocardial perfusion scintigraphy was performed following physiological effort on treadmill. Patients in whom coronary angiography were performed in 1 month before or after scintigraphic evaluation were included into the study. Results: In 55% of patients having positive effort stress testing, 82% of patients having suspicious and 29% of patients with negative test results atherosclerotic narrowing in coronary arteries were detected by angiography. Whereas, in 66% of patients had ischemic myocardial perfusion scintigraphic findings and 12% of patients with normal scintigraphy, angiography revealed coronary artery stenosis. Conclusion: In diagnosis and follow-up of coronary artery disease, effort stress testing and myocardial perfusion test are used. If findings of these tests are evaluated together, accuracy of the tests will be increased.

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coronary artery disease , myocardial ischemia , myocardial perfusion imaging , coronary angiography , exercise test

Dicle Medical Journal

108

Dicle Medical Journal