肺动脉栓塞 (PE)是一种常见病 ,在美国每年约有 6 5万新发病例 ,其发病率在心血管疾病中仅次于冠心病和高血压 ,占第三位[1] 。国外尸检发现 ,PE的临床漏诊率为 6 7% ,假阳性率为 6 3% ,诊断正确者仅 1/ 3。近年来随着检查技术的改进 ,病变检出率有所提高。诊断明确并经过适当? Pulmonary embolism (PE) is a common disease, with about 65 million new cases occurring each year in the United States, and its incidence is third only to coronary heart disease and hypertension in cardiovascular disease [1]. Foreign autopsy found that the clinical diagnosis of PE was 67%, false positive rate was 63%, only 1/3 of the correct diagnosis. In recent years, with the improvement of examination techniques, the detection rate of lesions has increased. Diagnosis is clear and after appropriate?