摘要
目的探讨彩色多普勒超声(DUS)、三维动态增强磁共振血管成像(CE-MRA)、CT血管造影(CTA)三种影像学方法对糖尿病下肢动脉病变的诊断价值。方法将本院115例诊断为糖尿病引起的下肢动脉病变(下肢动脉狭窄或闭塞病变)的患者作为研究对象,均行单侧或双侧的CTA、CE-MRA、DUS影像学检查。结果 115例患者149条下肢动脉中,按照血管分支分级,其中1级:轻度狭窄79条,中度狭窄41例,重度狭窄或闭塞29条;2级:轻度狭窄51条,中度狭窄48例,重度狭窄或闭塞50条;3级:轻度狭窄98条,中度狭窄37例,重度狭窄或闭塞14条。在98条行DUS检查的下肢动脉病变中,1、2、3级动脉中度狭窄的灵敏度分别为91.18%、87.23%、78.57%,特异度分别为93.75%、96.08%、98.57%;1、2、3级动脉重度狭窄的灵敏度分别为75.00%、81.82%、55.56%,特异度分别为93.02%、90.91%、97.75%。结论三种不同影像学方法(DUS、CE-MRA、CTA)在诊断糖尿病下肢动脉病变方面均具有较高的准确性,其中CTA对评估患者下肢动脉重度狭窄的诊断效能高于其它两种影像学方法。
引文
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