肺栓塞(PE)的误诊很常见。临床症状,心电图,胸部X线,血清酶学和纤维蛋白分解产物测定,血气分析等检查均缺乏特异性和敏感性。最常用的灌注扫描法但常出现假阳性。而通气扫描法在原有其它肺部疾病者同样不敏感。肺血管造影有确定诊断的价值, Misdiagnosis of pulmonary embolism (PE) is common. Clinical symptoms, electrocardiogram, chest X-ray, serum enzyme and fibrinolytic products determination, blood gas analysis and other tests are lack of specificity and sensitivity. The most commonly used perfusion scan method but often false positives. Ventilation is equally insensitive to other lung diseases. Pulmonary angiography has a definite diagnostic value,