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目的探讨MR时间分辨对比剂动态增强技术(TRICKS)在诊断糖尿病足下肢动脉病变中的临床价值。方法回顾性分析18例糖尿病足双侧下肢血管病变患者的TRICKS及DSA资料,将研究血管分为腘动脉、胫腓动脉干、胫前动脉、胫后动脉、腓动脉、足背动脉6个节段,以DSA作为标准进行分析。结果在216个动脉节段中,187个节段两种检查显示一致,TRICKS高估21个节段,低估8个节段。TRICKS对于下肢狭窄动脉的判断平均准确率为86.57%,平均敏感度为90.98%,平均特异度为75.79%。TRICKS和DSA对血管狭窄程度分级的总符合率为86.57%。结论 TRICKS是诊断下肢血管病变的可靠方法。
Objective To investigate the clinical value of MR time contrast contrast agent dynamic enhancement (TRICKS) in the diagnosis of diabetic foot lower extremity arterial disease. Methods The TRICKS and DSA data of 18 patients with bilateral lower extremity vascular lesions in diabetic foot were retrospectively analyzed. The vessels were divided into six groups: the common carotid artery, the tibiofibular artery trunk, the anterior tibial artery, the posterior tibial artery, the peroneal artery and the dorsalis pedis artery Section, with DSA as a standard for analysis. RESULTS Of the 216 segments of the arteries, 187 of the two segments showed the same pattern. TRICKS overestimated 21 segments and underestimated 8 segments. TRICKS for the lower extremity stenosis arteries to determine the average accuracy was 86.57%, the average sensitivity was 90.98%, the average specificity was 75.79%. The total coincidence rate of TRICKS and DSA for the degree of vascular stenosis was 86.57%. Conclusion TRICKS is a reliable method of diagnosing lower extremity vascular lesions.