【摘要】 目的 探讨64层螺旋CT血管成像在下肢动脉硬化闭塞症中的诊断价值。方法 57例临床怀疑下肢动脉硬化闭塞症的患者行64层螺旋CT下肢血管造影,检查后所有病例均行MIP、VR、MPR重建,对57例病例下肢动脉内斑块性质进行测量分析;其中38例与DSA检查进行对照。结果 57例共分析各型斑块217个,其中脂质斑块77个,纤维斑块62个,钙化斑块78个。38例共596个节段CTA与DSA进行比较,总一致率96.6%;其中中度狭窄、重度狭窄、闭塞的一致率分别是93.0%、90.0%、92.9%。结论 64层螺旋CT下肢血管成像可直观显示下肢动脉狭窄闭塞情况,确定狭窄处斑块性质,从而决定治疗方案。更多还原

【Abstract】 Objective To investigate the value of 64-slice spiral CT angiography in the diagnosis of the lower extremity arteriosclerotic obliterans.Methods 64-slice spiral CT of the lower extremity angiography were performed in 57 patients who were suspected clinically of the lower extremity arteriosclerotic obliterans.Maximum intensity projection(MIP),volume rendering(VR),multiplanar reconstruction(MPR) were reconstructed in all cases after scanning.The plaques in the lower limb arteries of 57 cases were measured and analyzed,which were compared with digital subtraction angiography(DSA) in 38 cases.Results 217 plaques were showed and analyzed in 57 cases,including 77 fatty plaques,62 fibrous plaques,78 calcified plaques.38 cases performed on DSA showed 596 segment artery,which were compared with CTA,the total consistent rate was 96.6%:in moderate stenosis,severe stenosis and occlusion artery,the consistent rate were 93.0%,90.0%,92.9% respectively.Conclusion 64-slice spiral CT of the lower extremity vascular imaging can visualize the artery stenosis and occlusion,determine the nature of the plaque,and the treatment option.更多还原