模块分叉支架型血管设计的CT研究

目的 利用CT研究中国人升主动脉及主动脉弓与腔内修复技术相关的血管解剖特点.方法 选择2006年9月至2007年9月在我院接受主动脉CT血管造影且符合入选条件的个体388例,使用美国GE公司AW 4.2工作站测量升主动脉、主动脉弓、弓上分支的直径和长度.结果 冠状动脉开口以上至左锁骨下动脉以远6个测量点的主动脉直径分别为(34±5)mm、(34±5)mm、(33±4)mm、(30±4)mm、(28±3)mm和(26±3)mm.头臂干两处测量点的直径分别为(13.1±1.9)mm和(12.8±2.3)mm.左颈总动脉两处测量点的直径分别为(8.7±1.5)mm和(7.9±1.0)mm.左锁骨下动脉两处测量点的直径分别为(10.7±1.7)mm和(9.3±1.3)mm.冠状动脉开口处至头臂干动脉开口近端的主动脉管腔长度为(5.3±1.2)cm,头臂干开口近端与左颈总动脉开口近端之间的主动脉管腔距离为(1.3±0.4)cm,头臂干起始处至右锁骨下动脉开口处长度为(4.1±0.8)cm,左锁骨下动脉起始处至椎动脉开口处管腔长度为(3.8±0.8)cm,头臂干与左颈总动脉管壁之间距离为(O.4±0.2)cm,左颈总与左锁骨下动脉之间管壁距离为(0.7±0.6)cm.结论 CT测量所得的升主动脉数据可以为支架血管的系列生产提供支持.

CT-research about how to design the diameter and length of the modular branched stent-graft

Objective To study the anatomical characteristics about ascending aortic and aortic arch in Chinese population bv CT Methods From September 2006 to September 2007,388 patients free of current known aortic pathology nndergone thoracic aorta CTA The diameter of ascending aorta,aortic arch.And branch vessels of aortic arch were measured respectively bv AW4.2 work station.The data base about all the measurements was set up.The CHISS statistical software was used to analysis data.Results The aortic diameter above coronary artery(CA)，the level at origin of and brachiocephalic trunk(BCT)，the halfway of the ascending aorta，the level at origin of left common carotid artery(LCCA)，the level at origin of left subclavian artery(LSA)and the level at distal of origin of LSA respectively were(34±5)mm，(34±5)mm，(33±4)mm，(30±4)mm，(28±3)mm and(26±3)mm.The diameters of two level between the origin of BCT and right subclavian artery(RSA)were(13.1±1.9)mm and(12.8±2.3)mm,Diameters of two level at LCCA were(8.7±1.5)mm and(7.9±1.0)mm The diameters of two level between the origin of LSA and left vertebral artery were(10.7±1.7)mm and(9.3±1.3)mm.The aortic lumina length between the origin of CA and BCT was(5.3±1.2)cm，the aortic lumina length between the origin of BCT and LCCA was(1.3±0.4)cm，the lumen length between origin of BCT and RSA was(4.1±0.8) cm，the lumen length between origin of LSA and left vertebral artery was(3.8±0.8)cm.The distance between the wall of BCT and LcCA was(0.4±0.2)cm,the distance between the wall of LCCA and LSA was(0.7±0.6)cm.Conclusions Modular branched stent-graft system is fit for most part of the Chinese.The size fit for human could be got on this basic.