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本文采用运动二维超声心动图方法对40名受检者(20名心肌梗塞后患者,20名冠心病心绞痛患者)作了观察。踏车的速度是60周/分,作功125W,持续时间7分钟。20名心肌梗塞后患者仅作为对照,以避免判断心绞痛的节段性运动异常可能出现的主观偏差。40名受检者均获得了满意的二维超声图像。通过以下几个切面对室壁作了详细地观察:左室长轴切面、心尖四腔心切面、心尖二腔心切面、二尖瓣水平短轴切面和乳头肌水平的短轴切面。结果发现在冠心病心绞痛组有4例在运动后出现节段性运动异常同时伴有ST段的降低。用运动超声心动图方法诊断异常其敏感度为40％。尽管本文获得丁这一诊断方法较低的敏感度,但很可能更客观地反映了该方法的真实价值。本试验结果表明,应用运动二维超声心动田是一种简单、易行和费用低廉的诊断冠心病的方法。
In this paper, 40 subjects (20 patients with myocardial infarction and 20 patients with coronary heart disease angina) were observed by exercise two-dimensional echocardiography. The speed of the treadmill is 60 weeks / min, work 125W, duration 7 minutes. 20 patients after myocardial infarction only as a control to avoid judging the possible subjective deviation of segmental motor abnormalities of angina. Forty subjects were satisfied with the two-dimensional ultrasound images. The wall was examined in detail by the following sections: the long axis of the left ventricle, the apex four-chamber heart-cut, the apical two-chamber heart-beak, the mitral horizontal short-axis and the papillary muscle short-axis. The results showed that in the group of coronary heart disease, 4 cases showed segmental movement abnormalities accompanied with ST-segment depression after exercise. The sensitivity of exercise echocardiography in diagnosis of abnormalities was 40%. Although this paper obtains the lower sensitivity of this diagnostic method, it is likely to reflect the true value of the method more objectively. The test results show that the application of exercise two-dimensional echocardiography is a simple, easy and inexpensive method of diagnosis of coronary heart disease.