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现代统计资料表明,人群中5％～10％的死亡原因是突发的脉动脉血栓栓塞,而美国每年有60万人患肺栓塞,所以肺动脉血栓栓塞的诊断和早期治疗问题越来越迫切。肺栓塞病例中,约90％的血栓来源于下肢和盆腔静脉,而在静脉血栓形成之前,仅有不到34％的病例发生临床症状,74％的病例在肺小动脉分支栓塞之前不出现症状。目前,溶栓疗法是治疗肺动脉血栓栓塞的重要方法,但随后重要器官再发血栓栓塞的危险性和不
Modern statistics show that 5% to 10% of the population died of sudden pulse thromboembolism, and 600,000 people in the United States suffer from pulmonary embolism each year. Therefore, the diagnosis and early treatment of pulmonary thromboembolism are becoming more and more urgent. About 90% of thrombi originated in the lower extremities and pelvic veins in PE cases, whereas in less than 34% of cases developed clinical symptoms prior to venous thromboembolism and in 74% of cases did not develop symptoms prior to pulmonary arterial embolization . Currently, thrombolytic therapy is an important method for the treatment of pulmonary thromboembolism, but then the risk of thrombosis and re-embolization of vital organs and not