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目的:探讨3D CE MRA在糖尿病足病外周动脉病变检查中的成像方法及应用价值。方法:对17例临床怀疑外周动脉病变的糖尿病足病患者,运用MR 3D FLASH自减影序列行CE MRA检查,检查范围自腹主动脉下段至足背动脉,对靶血管作最大强度投影(MIP)重组。另对其中4例小腿及足部动脉单独行二次增强扫描(Gd-DTPA 15ml,2.5ml/s)。对外周动脉进行观察,分析其狭窄情况并分级。结果:所有患者显示目标动脉基本满意,血管解剖形态较清晰,病变显示较明确。正常或轻度狭窄169个节段,中度狭窄94个节段,重度狭窄45个节段,闭塞49个节段。结论:3D CEMRA在糖尿病足病外周动脉病变检查中具有重要意义,但尚有一定局限性。
Objective: To investigate the imaging method and application value of 3D CE MRA in the examination of diabetic foot disease. Methods: Seventeen patients with diabetic foot disease with suspected peripheral arterial disease were examined by MR 3D FLASH from CEUS. The examination ranged from the lower abdominal aorta to the dorsalis pedis artery, and the maximum intensity projection (MIP) was performed on the target vessel. Reorganization. In addition, 4 cases of the lower leg and foot arteries were individually underwent second enhanced scan (Gd-DTPA 15ml, 2.5ml / s). Peripheral arteries were observed and analyzed for stenosis and grading. Results: All the patients showed that the target artery was basically satisfied, the anatomy of the blood vessel was clearer, and the pathological changes were clearer. 169 normal or mild stenosis segments, 94 moderate stenosis segments, 45 severe stenosis segments and 49 segments occlusion. Conclusion: 3D CEMRA is of great significance in the examination of diabetic foot disease, but there are some limitations.