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对人们和可疑冠状动脉硬化性心脏病人来说,一直需要有一种非侵入性的检查方法,以确定该病的存在与程度。虽然广泛地应用静止和运动时的心电图检查,但在临床应用时缺乏高度的特异性,故仍需依赖冠状动脉造影术作为鉴别冠心病的最后标准(包括病变冠状动脉的定量和定位)。最近的报告提示,极量运动试验与冠状动脉造影术的结果相对照,由于出现假阳性和假阴性结果而显示出相当大的局限性。近来的研究证明,心脏应用许多不同的放射性同位素检查,对确定梗死心肌的部位和明
There is a continuing need for a noninvasive method of screening for people and suspect coronary heart disease to determine the presence and extent of the disease. Although electrocardiographic examination at rest and exercise is widely used, its lack of high specificity in clinical use still relies on coronary angiography as the final criterion for the identification of coronary artery disease (including the quantification and localization of diseased coronary arteries). Recent reports suggest that maximal exercise testing contrasts with coronary angiography findings and shows considerable limitations due to false-positive and false-negative results. Recent studies have shown that many different radioisotopes are applied to the heart and that the site of myocardial infarction