肺动脉栓塞(pul monary embolism,PE),是内源性或外源性栓子堵塞肺动脉或其他分支引起肺循环障碍的临床和病理生理综合征,是许多疾病的一种严重并发症,发病率较高。由于其病因的复杂性、临床表现及常规检查的非特异性,临床误诊、漏诊及病死率较高,据报道在现代先进诊断技术高度 Pulmonarial embolism (PE), a clinical and pathophysiological syndrome that causes endogenous or exogenous emboli to clog pulmonary artery or other branches to cause pulmonary circulatory disorders, is a serious complication of many diseases with a high incidence . Due to its complexity of etiology, clinical manifestations and routine examination of non-specific, clinical misdiagnosis, missed diagnosis and high mortality, it is reported in the height of modern advanced diagnostic techniques