四肢动脉损伤的双源CT血管成像临床应用  

The Application of Dual-source CT Angiography in Artery Injury of Extremities

作　　者：周代全[1] 黎川[1] 戴明德[1] 何强[1] 

机构地区：[1]第三军医大学西南医院放射科,重庆400038

出　　处：《实用放射学杂志》2010年第10期1508-1510,共3页Journal of Practical Radiology

摘　　要：目的 探讨双源CT血管成像在四肢动脉损伤中的临床应用价值及技术优势.方法 对11例疑有四肢动脉损伤的患者行双源CT血管成像检查, 其中上肢动脉双源CT血管成像4例,下肢动脉双源CT血管成像7例,并对术后患者行双源CT血管成像复查.使用德国西门子Somatom Definition 双源CT扫描机,对比剂浓度350 mg I/ml或 370 mg I/ml,总量80~100 ml,注射速率为4.0 ml/s.对薄层横断面图像分别采用多平面重建（multiplanar reformation,MPR）,容积重建（ volume rendering,VR） , 最大密度显影（maximum intensity projection, MIP）等后处理技术进行血管重建.结果 11例血管成像均显示血管丰富、清晰, 血管边缘光滑自然,图像质量优良完全满足临床诊断要求,其中4例动脉血管显示正常,肱动脉断裂2例,腘动脉断裂3例,股动脉断裂2例.术前诊断与术后诊断的符合率达100%.结论 对于疑有动脉损伤的肢体外伤患者,双源CT血管成像可以作为一种首选的血管成像方法,通过多种重建技术进行三维血管重建,为临床诊断和治疗方案的制订提供了有力的证据.Objective To assess the clinical applied value and advantages of dual--source CT（ DSCT ） angiography in artery injury of extremities . Methods 11 cases suspected with artery injury Of extremities （upper extremity in 4 and lower extremity in 7 ） underwent DSCT angiography pre--and post--operation at Somatom Definition DSCT scaner . The image data were reconstructed by MPR , MIP and VR . The contrast medium was 350 or 370 mg I/ml , total amount was 80~100 ml and injection rates was at 4.0 ml/s. Results The image quality was good enough to meet the requirements of clinical diagnosis in all cases. CTA showed nor- mal arteries in 4 cases, femoral artery rupture in 2 cases, popliteal artery rupture in 3 cases and femoral artery rupture in 2 cases. Meanwhile the coincidence between preoperative diagnosis by CTA and postoperative diagnosis was 100~. Conclusion For the pa- tients suspected with artery injury,DSCT angiographic examination may be the first choice. Three--dimensional reconstruction angiographic techniques are helpful in diagnosing and clinical management.

关 键 词：四肢 动脉损伤 血管成像 体层摄影 X线计算机 

分 类 号：R543.5[医药卫生—心血管疾病] R814.43[医药卫生—内科学]