摘要
Abstract
Objective To study the diagnostic value of echocardiography and phonocardiography for coronary heart disease(CHD).Methods A total of 102 patients suspected with CHD were selected,including 7 negative patients and 95 positive patients.Among the positive cases,there were 3 cases with the stenosis degree of arterial vessel's diameter less than 50%(group A),36 cases with the stenosis degree of arterial vessel's diameter greater than or equal to 50%and less than 75%(group B),and 56 cases with the stenosis degree of arterial vessel's diameter greater than or equal to 75%(group C).Based on coronary angiography results as the gold standard,the positive rates of CHD and the detection rates of different degrees of coronary artery stenosis were compared between the two examination methods.Results Coronary stenosis was detected in 7 patients(7.37%)by echocardiography;no coronary stenosis was detected in group A,one case(2.78%)was detected in group B,and 6 cases(10.71%)were detected in group C.Coronary stenosis was detected in 78 patients(82.11%)by phonocardiography including 2 patients(66.67%)in group A,28 patients(77.78%)in group B,and 48 patients(85.71%)in group C.The difference in the positive rate of CHD was statistically significant between the two examination methods(P<0.05).In the diagnosis of CHD,the specificity,sensitivity and accuracy rate of echocardiography were 100%,7.37%and 13.73%,respectively;the specificity,sensitivity and accuracy rate of phonocardiography were 14.23%,82.11%and 77.45%,respectively.Conclusion The diagnostic results of phonocardiogram based on the fourth heart sound are more in line with the diagnostic results of the gold standard.Therefore,phonocardiogram has a relatively high diagnostic value for CHD.Meanwhile,its overall diagnostic coincidence rate is also higher than that of echocardiography.关键词
冠心病/冠状动脉狭窄/冠状动脉造影/超声心动图/心音图Key words
coronary heart disease/coronary stenosis/coronary angiography/echocardiography/phonocardiogram分类
临床医学
