髂-股动脉MSCT血管成像解剖学研究

Study of ilio-femoral artery anatomy using multi-slice spiral CT angiography

目的:探讨多层螺旋CT血管成像(MSCTA)对髂-股动脉解剖学研究的价值及临床意义。方法:搜集符合要求的病例350例,所有病例行16层螺旋CT增强扫描,采用容积再现技术对髂-股动脉进行三维重建。测量动脉分叉到髂嵴连线、股骨头上缘连线的垂直距离及动脉分叉夹角。结果:腹主动脉分叉到髂嵴连线的垂直距离为(5.71±13.64)mm。腹主动脉分叉、左右髂总动脉分叉、左右股总动脉分叉到股骨头上缘连线的垂直距离男性组分别为(121.20±12.87)、(85.38±13.48)、(82.59±14.48)、(42.56±10.91)、(41.38±10.71)mm,女性组分别为(127.35±13.78)、(92.43±13.59)、(89.11±13.10)、(36.27±10.82)、(36.45±11.25)mm。腹主动脉分叉夹角、左右髂总动脉分叉夹角男性组分别为(41.63±14.29)°、(25.83±12.31)°、(25.70±12.38)°,女性组分别为(43.40±11.37)°、(24.89±11.15)°、(21.80±10.98)°。结论:MSCTA能清晰显示髂-股动脉及其与髂嵴、股骨头的位置关系,是髂-股动脉影像解剖学研究和介入治疗前评价的有效方法。

Objective：To investigate the value of multi-slice spiral CT angiography（MSCTA） in the study of ilio-femoral artery anatomy.Methods：From June to September 2010,350 patients meeting the requirement of this study were recruited.Contrast-enhanced scanning of pelvis was performed by 16-slice spiral CT.After thin-slice reconstruction,the 3D images of ilio-femoral arteries were reconstructed with volume rendering（VR） technique.Vertical distances from the arterial bifurcations to inter-iliac-crest line or inter-femoral-head line and angles of arterial bifurcations were measured.Results：Vertical distance from abdominal aortic（AA） bifurcation to inter-iliac-crest line was（5.71±13.64）mm.Vertical distances from AA bifurcation,left and right common iliac artery bifurcations（CIAB）,left and right common femoral artery bifurcations（CFAB） to inter-femoral-head line of male was（121.20±12.87）mm,（85.38±13.48）mm、（82.59±14.48）mm,（42.56±10.91）mm,（41.38±10.71）mm respectively;of female was（127.35±13.78）mm,（92.43±13.59）mm,（89.11±13.10）mm,（36.27±10.82）mm,（36.45±11.25）mm respectively.Angles of AA bifurcation,left and right CIAB of male was（41.63±14.29） °,（25.83±12.31） °,（25.70±12.38） ° respectively;of female was（43.40±11.37） °,（24.89±11.15） °,（21.80±10.98） ° respectively.Conclusion：3D-CT angiography can clearly display the ilio-femoral artery and its relationship with iliac crest or femoral head.It is a useful approach for the study of ilio-femoral artery anatomy and the evaluation before interventional therapy.