论文部分内容阅读
目的探讨下肢动脉硬化闭塞症的多排螺旋CT血管成像(MSCTA)的诊断价值。方法对48例临床诊断为下肢动脉硬化闭塞症患者行MSCTA检查,同时行DSA检查和/或手术治疗。MSCTA检查包括MIP、VR、MPR和CTVE重建。结果48例下肢动脉硬化闭塞症的MSCTA均能获得准确的诊断,与DSA和手术结果比较,其敏感性、特异性和准确性均为100%。通过多平面重建测量其面积狭窄百分比,以狭窄程度最严重处为准,表现为轻度狭窄者3例,中度狭窄8例,重度狭窄16例,闭塞21例。MSCT重建技术能显示斑块及狭窄管腔内部形态。结论MSCTA可直观地显示下肢动脉硬化闭塞症的狭窄程度,有利于术前评价。
Objective To investigate the diagnostic value of multislice CT angiography (MSCTA) of lower extremity arteriosclerosis obliterans. Methods 48 cases of clinically diagnosed patients with lower extremity arteriosclerosis obliterans MSCTA examination, simultaneous DSA and / or surgical treatment. MSCTA examinations include MIP, VR, MPR and CTVE reconstruction. Results 48 cases of arteriosclerosis obliterans of lower extremity arteriosclerosis can be accurately diagnosed. Compared with DSA and surgical results, the sensitivity, specificity and accuracy were all 100%. The percentage of stenosis was measured by multiplanar reconstruction, with the most severe stenosis prevailing, showing mild stenosis in 3 cases, moderate stenosis in 8 cases, severe stenosis in 16 cases and occlusion in 21 cases. MSCT reconstruction can show plaque and narrow lumen internal morphology. Conclusion MSCTA can visually show the degree of stenosis of lower extremity arteriosclerosis obliterans, which is good for preoperative evaluation.