16层螺旋CT在糖尿病下肢动脉硬化闭塞症评估中的应用价值

Application value of 16-slice spiral CT angiography in diabetic lower extremity arteriosclerotic occlusive disease

目的:利用16层螺旋CTA评估不同程度糖尿病下肢动脉病变特点,为糖尿病下肢动脉硬化闭塞症的诊断、治疗及预后评估提供新的影像学方法。方法:对28例糖尿病下肢动脉硬化闭塞症患者行16层螺旋CT动脉血管造影检查,重建分析采用多平面重建、容积重建、最大密度投影重建。结果:共评价638段血管,449段血管狭窄,其中轻度狭窄206段、中度狭窄125段、重度狭窄72段、闭塞46段。侧支循环建立26例。发现钙化斑块或血管壁钙化512段,MPR、MIP、VR均能很好显示。结论:16层螺旋CT血管成像是一种准确、可靠、无创的成像技术,是下肢动脉硬化性疾病很好的影像学检查方法,应作为治疗前的常规检查。

Objective：To determine the applied value of 16-slice spiral computed tomography angiography（MSCTA） for evaluating the features of lower extremity angiopathy in diabetic patients and to provide a new imaging method for the diagnosis,treatment and prognostic assessment of this disease.Methods：The 16-slice spiral CT was performed for 28 patients with disease of ASO to reconstruct multiple planner reconstruction（MPR）,volume rendering technique（VR） and maximal intensity projection（MIP）.Results：638 aterial segments were assessed in totae.Artery stenosis and occlusions were found in 449 segments,slightly stenosis in 206 segments,mildly stenosis in 125 segments,severely stenosis in 72 segments,and occlusion in 46 segments.Collateral circulation formation was foud in 26 segments.Calcified plaque or arterial wall calcification were found in 512 segments.Conclusion：MSCTA is a safe,non-invasive and accurate method for evaluating lower extremity artery disease in Diabetic patients,so that it should be taken as a routine examination before treatment.