CT血管造影显示旋股外侧动脉穿支  

CT angiograph in lateral circumflex femoral artery perforators visualization

作　　者：朱洪章[1] 杨旭峰[1] 杨有优[1] 翟凤仪[1] 朱庆棠[2] 李子平[1] 杨建勇[1] 

机构地区：[1]中山大学附属第一医院放射诊断专科,广东广州510080 [2]中山大学附属第一医院显微外科,广东广州510080

出　　处：《中国介入影像与治疗学》2015年第10期639-643,共5页Chinese Journal of Interventional Imaging and Therapy

摘　　要：目的评价不同CTA扫描方案显示旋股外侧动脉(LCFA)穿支的能力。方法将28例除大腿以外的四肢外伤患者及27名健康志愿者随机分为3组。对A组(15人,30侧大腿)采用双侧大腿低放射剂量扫描方案,B组(15人,30侧大腿)采用双侧大腿常规放射剂量扫描方案,C组(25人,25侧大腿)采用单侧大腿常规放射剂量扫描方案进行CTA检查。记录辐射吸收剂量,观察LCFA显示情况及起源,测量LCFA主干开口内径、降支开口内径、降支长度、降支血管分级、降支穿支数量、穿支末端最小内径。结果 B组中1例(2侧大腿)因对比剂渗漏未能完成检查。3组共83侧大腿,LCFA起自股动脉分别为A组7侧、B组8侧、C组6侧,起自股深动脉分别为A组23侧、B组20侧、C组19侧。3组间,辐射吸收剂量、降支长度、降支穿支末端最小内径、降支血管分级及降支穿支数量差异均有统计学意义(P均<0.001),LCFA主干及降支开口内径差异均无统计学意义(P均>0.05)。结论单侧大腿常规放射剂量CTA显示LCFA细小穿支的能力优于双侧低放射剂量及双侧常规剂量CTA,而3种扫描方案对较大血管的显示效果相近。Objective To assess the efficiency of different CTA scan protocols in lateral circumflex femoral artery（LCFA）perforators visualization.Metheods A total of 28 patients with traumatic limbs except of thighs and 27 healthy volunteers were enrolled and randomly divided into 3groups.There were 15subjects（30thighs）in group A underwent bilateral thighs low radiation dose CTA,15subjects（30thighs）in group B underwent bilateral thighs conventional radiation dose CTA and 25subjects（25thighs）in group C underwent unilateral thigh conventional radiation dose CTA.The radiation absorbed dose was recorded.And the vascular status and origin of LCFA,inner diameter of LCFA ostia,inner diameters of,descending branch ostia,length of descending branch,visualized grade of descending branch,numbers of descending branch perforator and smallest inner diameter of descending branch perforator extremity were observed and measured.Results CTA scaning for 1patient in group B（2thighs）was canceled due to contrast media extravasation.Totally there were 83 thighs in 3groups.LCFA originated from femoral artery in 7thighs of group A,8thighs of group B and 6thighs of group C.While LCFA originated from deep femoral artery in 23 thighs of group A,20 thighs of group B and 19 thighs of group C.There were statistical differences of radiation absorbed dose,length of descending branch,smallest inner diameter of descending branch perforator extremity,visualized grade of descending branch and numbers of descending branch perforator among 3groups（all P〈0.001）.No statistical differences in inner diameters of LCFA ostia and descending branch ostia among 3groups（both P〉0.05）.Conclusion Unilateral thigh conventional radiation dose CTA scan protocol has higher detectability in LCFA perforators visualization both than underwent bilateral thigh low radiation dose and bilateral thigh conventional radiation dose protocols.Bur the visualizations of main segmental artery obtained by 3scan protocols are similar.

关 键 词：旋股外侧动脉 旋股外侧皮瓣 体层摄影术 X线计算机 

分 类 号：R658[医药卫生—外科学] R816.2[医药卫生—临床医学]