国人升主动脉及主动脉弓的CT解剖研究

目的 通过CT血管造影(computed tomographic arteriography,CTA)方式回顾性研究中国人群升主及弓部血管的直径、长度特点;方法选择2006年9月至2007年9月接受胸主动脉CT血管造影的患者388例,使用GE公司AW4.2工作站测量升主、弓部、弓上分支的直径及长度数据,运用统计学软件进行分析.结果 冠脉开口以上至左锁骨下动脉以远的主动脉直径D1-D6分别为(34±5)mm;(34±5)mm;(33±4)mm;(30±4)mm;(28±3)mm;(26±3)mm.头臂干两处直径d1,d2分别为(13±2)mm;(13±2)mm.左颈总动脉两处直径d3,d4分别为(8.7±1.5)mm;(7.9±1.0)mm.左锁骨下动脉两处直径d5,d6分别为(10.7±1.7)mm;(9.3±1.3)mm.冠脉开口处至头臂干动脉开口近端的主动脉管腔长度L1为(5.4±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L2为(1.3±0.4)cm;头臂干起始处至右锁骨下动脉开口处长度11为(4.0±0.8)cm;左锁骨下动脉起始处至椎动脉开口处管腔长度I2为(3.8±0.8)cm;头臂干与左颈总动脉管壁之间距离I3为(0.39±0.23)cm;左颈总与左锁骨下动脉之间管肇距离I4为(0.7±0.5)cm.结论 得到中国人群升主及弓部血管直径和长度的数据,可为腔内修复升主动脉及主动脉弓的各类研究提供数据支持.

CT topography of asending aorta and aortic arch in adult Chinese

Objective To study the anatomical characteristics of ascending aortic and aortic arch in adult Chinese. Methods From Sep 2006 to Sep 2007, we retrospectivly reviewed 388 volunteers undergoing thoracic aorta CTA in our institution. We measured the diameter of ascending aorta, aortic arch, and branch vessels of aortic arch respectively in AW4.2 work station. CHESS statistical software was used to analyze data. Results The aortic diameter above coronary artery (CA) (D1), the level at origin of brachiocephalie trunk (BCT) ( D3 ), the halfway of the AA( D2 ), the level at origin of LCCA( D4 ) , the level at origin of LSA ( D5 ) and the level at distal origin of LSA ( D6 ) respectively are: ( 34 ± 5 ) mm; ( 33 ± 4) mm; ( 34 ± 5 ) mm; ( 30 ± 4) mm; ( 28 ± 3 ) mm; ( 26 ± 3 ) mm. The diameters of two level between the origin of BCT and RSA are ( 13. 1 ± 1.9) mm, ( 12. 8±2. 3) mm, respectively. The diameter of two level at LCCA is ( 8. 7 ± 1.5 )mm and ( 7. 9 ± 1. 0) mm respectively. The diameter of two level between the origin of LSA and L-vertebral arteryis (10.7±1.7) mm,(9.3±1.3) mm, respectively. Conclusion The data of the diameter and length of ascending aort and vasculature arising from the arch abtained by CT topography in Chinese volunteers are very useful for clinical practice.