主动脉夹层的螺旋CT、MRI与DSA影像对比分析  

The Imaging Compare Analyze of MRI、Spiral CT and DSA of Aortic Dissection

作　　者：陈刚[1] 刘继伟[1] 李德生[1] 王忠红[1] 文福祥 徐亚红[1] 

机构地区：[1]佳木斯市中心医院,黑龙江佳木斯154002

出　　处：《中国医疗前沿》2009年第1期86-87,共2页China Healthcare Innovation

摘　　要：目的探讨主动脉夹层的螺旋CT、DSA、MRI影像学特点,并进行对比分析。方法21例患者,男16例、女5例,年龄44-73岁,平均54.5岁。全部患者均做CT平扫、增强扫描,DSA造影6例,MRI检查5例。结果按Debakey分型,I型5例,Ⅲ型16例,CT平扫主动脉内膜钙化内移者9例,增强后呈不同或等密度真假两腔,均显示内膜片,且扫描快,图像直观,不受金属植入物及病重的限制。DSA检查,发现主动脉破口及主动脉双腔4例(66.6%),MRI检查,均能精确显示主动脉夹层特有的双腔征,内膜撕裂的位置。结论螺旋CT对本病诊断率高,具有非创伤性且迅速方便的特点,较DSA、MRI诊断有明显的优势,应用范围更广,可作为主动脉夹层诊断的首选。Objective To study the imaging features of aortic dissection （AD） and compare analyze. Methods There were 16 male patients and 5 female patients in 21 cases.Aged from 44 to 73 years （mean 54.5 years）.The CT plain and enhanced findings with AD in 21 cases were analyzed retrospectively, DSA of aorta were operated in 6 cases with AD,MRI were operated in 5 cases . Results 21 patients were classified in to Debakey type Ⅰ and Ⅲ in 5 and 16. Minor calcications in the dissection membrance 9 cases, 21 cases enhanced CT can show the aortoc double lumen and intimal flap. The limitation of SCT was less than that of other ways. 6 case were examed by aorta DSA, rupture and double lumen were shown 4 case （66.6%）. 5 case were examed by MRI, double lumen and entry tears were all shown. Gonclusion AD can be diagnosed exactly by SCT, possess no wound and quick and convenient. SCT is better then DSA and MRI in AD diagnosis, has more extensive application and may be taken for the fitst seletion in diagnosis of AD.

关 键 词：主动脉夹层 螺旋CT 血管造影 磁共振成像 

分 类 号：R445[医药卫生—影像医学与核医学] R814.42[医药卫生—诊断学]