16层螺旋CT血管成像诊断下肢动脉病变的应用价值

目的：探讨16层螺旋CT下肢血管成像技术诊断下肢动脉硬化性闭塞症的应用价值。方法：对30例临床怀疑下陂动脉疾病的患者进行16层螺旋CT下肢血管戍像检查，重建分析采用最大密度投影（MIP）、容积再现技术（VR）、曲面重建（CPR）。结果：其中腹主动脉狭窄4例，髂动脉狭窄6例，股动脉狭窄狭窄8例，闭塞3例；小腿动脉狭窄7例，闭塞2例。全部患肢均存在股动脉以下不同程度的狭窄或闭塞。结论：利用16层螺旋CT下肢血管成像技术可以直观了解病变的范围和程度，是一种安全、准确、无创的检查方法。

Application Value of 16-slice Spiral CT Angiography in Lower Extremity Arterial Disease

Objective To discuss the application value of 16-slice spiral CT in lower extremity angiography diagnosis of arteriosclerotic occlusive disease, Methods The 16-slice spiral CT was performed for 30 patients with disease of lower extremity to reconstruct maximal intensity projection（MIP）, volume rendering technique（VR） and curved planar reconstruction（CPR）. Results All the examinations of CTA were successful, abdominal aortic stenosis was 4 cases, Iliac artery stenosis was 6 cases, femoral artery stenosis was 8 cases and occlusion was 3 cases; lower leg afterial stenosis was 7 cases and occlusion was 2 cases. There are varying degrees of stenosis or occlusion in following femoral artery for all patients. Conclusion The 16-slice CT of lower extremity angiography can be an intuitive understanding of the extent and scope of lesions, and is a safe, accurate, non-invasive screening method in lower extremity artery.