16排螺旋CT后处理重建对创伤性假性动脉瘤的诊断价值  

DIAGNOSTIC VALUE OF 16 ROW SPIRAL CT AND POST-PROCESSING RECONSTRUCTION FOR TRAUMATIC PSEUDOANEURYSM

作　　者：刘国标[1] 李沁梅[2] 张建波[1] 许剑涛[1] 

机构地区：[1]广州医学院荔湾医院放射科,广东广州510170 [2]广州医学院第二附属医院放射科

出　　处：《承德医学院学报》2013年第1期21-24,共4页Journal of Chengde Medical University

摘　　要：目的:探讨16排螺旋CT及后处理重建对创伤性假性动脉瘤的诊断价值。方法:回顾分析11例经临床和影像学证实的创伤性假性动脉瘤患者的CT资料,全部病例均行16排容积CT扫描,包括平扫及增强扫描,通过后处理重建显示瘤体的影像征象,包括多平面重建(MPR)、最大密度投影(MIP)和容积重建(VR)技术。结果:11例创伤性假性动脉瘤均为单发,位于股动脉4例(4/11),胫后动脉3例(3/11),腋动脉2例(2/11),胸主动脉1例(1/11),肾动脉1例(1/11)。瘤体长轴3-12cm,平均5.8±0.9cm。CT表现为突出受损动脉腔外的椭圆形或分叶状异常强化团块影,密度均匀。轴位扫描及后处理重建可清楚显示假性动脉瘤的解剖细节及毗邻关系。9例经导管介入治疗成功,2例行手术治疗。结论:16排CT及后处理重建可显示创伤性假性动脉瘤的特征性征象,可为临床治疗提供准确的影像学依据。Objective：To investigate the diagnostic value of 16 row spiral CT and post-processing reconstruction for traumatic pseudoaneurysm.Methods：The CT data of 11 traumatic pseudoaneurysm patients that diagnosed by clinic and iconography were retrospectively analyzed. All cases underwent plain CT scan and enhancement scan, and then postprocessing reconstruction to display the imaging features of pseudoaneurysm, include MPR, MIP and VR.Results：All the 11 cases were single lesion which involved femoral artery 4 cases, posterior tibial artery 3 cases, axillary artery 2 cases, thoracic aorta 1 case, renal artery 1 case. The long axis ofpseudoaneurysm was between 3cm and 12cm, average 5.8±0.9cm. CT scan showed an oval or lobulated abnormal enhanced mass with even density protruding from the injury aaery. Axial scanning and post-processing reconstruction could show the anatomical details and adjacent relationships ofpseudoaneurysm clearly. Among 11 patients, 9 cases were treated successfully by interventional therapy, while the other 2 cases were treated by operation.Conclusions： 16 row spiral CT and post-processing reconstruction can show characteristic features of traumatic pseudoaneurysm and can provide accurate imaging evidences for clinical treatment.

关 键 词：X线计算机 体层摄影术 创伤性假性动脉瘤 

分 类 号：R816[医药卫生—放射医学]