128层螺旋CT血管造影技术诊断主动脉夹层的价值

Value of 128-slice spiral CT angiography in the diagnosis of aortic dissection

目的评估128层螺旋CT血管造影技术对主动脉夹层的诊断价值。方法回顾性分析2011-2013年28例主动脉夹层患者的CT血管造影资料,分析主动脉夹层的临床特征、夹层累及范围和螺旋CT血管造影的影像学特点。结果 CT血管造影结果显示依据DeBakey分型法,Ⅰ型8例、Ⅱ型2例、Ⅲ型18例。所有患者均存在明确的撕裂内膜片、真假腔、破口位置、数目及分支受累情况。破口的部位多位于主动脉峡部,存在多个破口的有6例。2例为不典型的主动脉夹层。结论 128层螺旋CT血管造影技术及其各种图像后处理技术的综合运用,能准确判断主动脉夹层的直接影像学征象,能为临床提供精细的影像学信息,对治疗方案的选择具有重要临床参考价值。

Objective To evaluate the value of 128-slice CT angiography in the diagnosis of aortic dissection. Methods From 2011 to 2013, 28 patients with aortic dissection who were taken CT angiography in our hospital were included in this retrospective analysis. Their clinical characteristics, the extent of dissection and the imaging features in spiral CT angiography were explored. Results Based on the DeBakey classification, there were 8 cases of type Ⅰ, 2 cases of typeⅡ, 18 cases of type Ⅲ aortic dissection. All the aortic dissections had true and false lumen, the location of crevasse and the numbers of break branches were clearly revealed. Multiple crevasses were shown in 6 cases. There were 2 cases of atypical aortic dissection. Conclusion 128-slice spiral CT angiography can accurately determine the direct findings, provide precise imaging information and assist surgeons to choose treatment options.