摘要
目的 探讨内漏状态下腹主动脉瘤 (AAA)腔内隔绝术 (EVE)后瘤腔内压力的变化。方法 通过建立犬AAAEVE后内漏模型 ,测定内漏存在前后瘤腔内压力的变化。结果 内漏状态下瘤腔内平均动脉压明显升高 ,而内漏封闭后压力显著下降 ,且曲线平直。结论 瘤腔内压力曲线可作为评估EVE后瘤壁所受负荷的变化 ,也可作为判断内漏存在的方法之一。
Objective To investigate the intra-aneurysmal pressure curve in the presence of endoleak after endovascular exclusion (EVE) for abdominal aortic aneurysm(AAA). Methods Infrarenal aortic aneurysms were created with bovine jugular vein segements or patches. Then they were underwent incomplete endovascular exclusion of the aneurysm and formation of endoleaks. The pressures of blood flow outside the graft into the sac were measured. Results The intrasac pressure was higher than systemic pressure in the presence of endoleak. After sealing the endoleak, pressure decreased siginificantly, and the pressure curve showed approximately linear. Conclusion The change of intra-aneurysmal pressure curve reflected the load on aneurysmal wall after EVE, and can also help to determine the endoleak existance.
出处
《介入放射学杂志》
CSCD
2003年第4期259-260,共2页
Journal of Interventional Radiology
基金
国家"十五"攻关课题
军队杰出人才基金 (编号98J0 0 5 )
上海市科委基金
上海市卫生系统百人计划基金 (编号97BR0 47)资助课题
