摘要
目的探讨多层螺旋CT血管造影(MSCTA)不同图像后处理技术诊断常见下肢动脉闭塞性疾病的准确性。方法回顾性分析临床诊断为下肢动脉闭塞性疾病患者76例,均行MSCTA检查,采用容积重建(VR)、最大密度投影(MIP)、多平面重建(MPR)进行图像后处理,2周内行数字减影血管造影(DSA)。结果以DSA为"金标准",MSCTA诊断71例血管狭窄(93.42%)。本组71例患者共1329段可评估血管,MSCTA、MIP诊断下肢血管狭窄程度≥50%的准确率为95.79%、90.61%明显高于MPR(85.68%)、VR(86.15%)(P<0.05)。MPR、MIP、VR检查糖尿病下肢动脉狭窄闭塞、外伤后动脉损伤、骨筋膜室综合征的总准确率分别为88.73%、95.77%、73.24%,差异具有统计学意义(P<0.05)。结论 MSCTA结合不同图像后处理技术可作为诊断下肢动脉闭塞性疾病的理想影像学方法。
Objective To explore the accuracy of multi-slice spiral CT angiography （MSCTA） different image postprocessing techniques in the diagnosis of common lower extremity arterial occlusive diseases. Methods 76 cases of patients diagnosed with lower extremity arterial occlusive diseases were retrospectively analyzed. All patients underwent MSCTA. Vohnne reconstruction （VR）, maximum intensity projection （MIP） and multi- planar reconstruction （MPR） were used for image postprocessing. Digital subtraction angiography （DSA） was performed in 2 weeks. Results With DSA as the golden standard, MSCTA diagnosed 71 patients with vascular stenosis （93.42%）. In 71 patients in this study, there were a total of 1329 measurable blood vessels. The accuracy rates of MSCTA and M IP in diagnosis of lower extremity vascular stenosis ≥ 50% （95.79%, 90.61%） were significantly higher than that of MPR （85.68%） and VR （86.15%） （P〈0.05）. The total accuracy rates of MPR, MIP and VR in diagnosis of diabetic lower extremity artery stenosis and occlusion, artery injury after trauma and osteofascial compartment syndrome were 88.73%, 95.77% and 73,24%, respectively （P〈0.05）. Condition MSC.TA combined with different image postprocessing techniques can be used as an ideal imaging method for diagnosis of lower extremity arterial occlusive diseases.
出处
《中国CT和MRI杂志》
2017年第8期149-152,共4页
Chinese Journal of CT and MRI
关键词
动脉闭塞性疾病
多层螺旋CT血管造影
体层摄影技术
Arterial Occlusive Disease
Multi-slice Spiral CT Angiography
Tomography
X-ray Computer
