主动脉壁内血肿的64层螺旋CT诊断价值

目的：评价64层螺旋CT对主动脉壁内血肿的价值及优势。方法：采用64层螺旋CT,连续容积增强扫描,对32例主诉急性胸背痛患者行CT检查并诊断为壁内血肿。结果：32例按Stanford分型：A型8例,B型24例。其直接征象：沿主动脉壁的环形或新月形低密度影,无撕裂的内膜片。间接征象：钙化的动脉壁内移10例,溃疡18例,主动脉粥样硬化改变8例。并发胸腔积液3例。结论：螺旋CT血管成像技术可以在无创或微创的情况下清晰地显示壁内血肿,为临床诊断和治疗提供有价值的依据。

The diagnostic value of 64-slice spiral CT in Aortic intramural hematoma

Objective：To investigate the value of 64-slice spiral CT （VCT） in the diagnosis of aortic intramural hematoma and its advantages. Methods：32 patients,who complained of acute chest and back pain,underwent continuous volume enhancement scan with 64-slice spiral CT and were diagnosed with aortic intramural hematoma. Results：According to Stanford＇s classification,32 patients were divided into two types,i.e.,type A with 8 patients and type B with 24 patients. With respect to the direct signs,CT demonstrated the circular or crescentic mass in low density,without intimomedial flap or tear along the aortic wall. As for the indirect signs,CT showed the displaced intimal calcifications in 10 cases,ulceration in 18 cases,aortic atherosclerosis in 8 cases. In addition,3 patients were complicated by pleural effusion.Conclusion：CT angiography,as a non-invasive or minimally invasive modality,can clearly identify aortic intramural hematoma,thereby providing valuable information for the diagnosis and treatment of this disorder in clinic.