Treadmill Exercise Test In Diagnosing Coronary Artery Disease

Purpose:To compare the treadmill exercise test (TET) results with coronary angiography, and to evaluate the diagnostic value of treadmill exercise test in coronary heart disease.Material and method:Randomly select 50 cases which were coronary heart disease suspeeively, and analyze the TET results compare with CAG images.Results:1.33 patients were positive in treadmill exercise test among 50 subjects.22 patients were positive, while 11 patients were negative in coronary angiography among the 33 positive patients in treadmill exercise test. There were 17 negative patients in treadmill exercise test with 5 positive and 12 negative patients in coronary angiography. The sensitivity, specificity and accuracy were 81.5%(22/27),52.2%(12/23),68%(34/50).2.Gender differences:The sensitivity, specificity and accuracy in male were 83.3%,44.4%, 70.4%. However, the sensitivity, specificity and accuracy in female were 77.8%,57.1%,65.2%.The false positive rate in female was higher than that in male(P<0.05).Conclusion:1. The Treadmill Exercise Test is a simply operated, safe, noninvasive and economic method of auxiliary diagnosis Coronary Heart Disease.2. The Treadmill Exercise Test has a higher sensitivity and accuracy, can accurately evaluate the severity of already clear Coronary Heart Disease patients and judgment cure effect and prognosis.