肺动脉栓塞(Pulmonary embolism,PE)是因内源性或外源性栓子(栓子性质有血栓性栓塞、脂肪性栓塞、羊水性栓塞与空气性栓塞等)阻塞肺动脉或其主要分支引起肺循环障碍的临床与病理生理综合征,发病急,症状重,是内科急症之一,且病情凶险,如不及时抗凝治疗病死率极高。多层螺旋CT不仅可以直接显示肺动脉内血栓,还能够同时评估肺实质如肺不张、肺血多、肺血少,纵隔情况、肺动脉高压与心脏改变等。朗读 Pulmonary embolism (PE) is caused by obstruction of the pulmonary artery or its main branches due to endogenous or exogenous emboli (thrombus embolism, fatty embolism, amniotic embolism, air embolism, etc.) Of clinical and pathophysiological syndrome, acute onset, severe symptoms, is one of the medical emergency, and the disease dangerous, if not timely anticoagulant treatment of high mortality. Multi-slice spiral CT can not only directly display pulmonary thrombus, but also can simultaneously assess the lung parenchyma such as atelectasis, pulmonary blood more, less pulmonary blood flow, mediastinal conditions, pulmonary hypertension and heart changes. Read aloud