MRA及CTA诊断糖尿病足下肢血管病变的临床价值比较  

Comparison of Clinical Value of MRA and CTA in Diagnosis of Lower Extremity Vascular Disease of Diabetic Foot

作　　者：王力[1] 苏雪娟[1] 陈体[1] 董坤伦[2] 刘怡 WANG Li;SU Xue-juan;CHEN Ti(Department of Imaging,Nanyang Second General Hospital,Nanyang 473000,Henan Province,China)

机构地区：[1]河南省南阳市第二人民医院影像科,河南南阳473000 [2]河南省南阳市第二人民医院内分泌科,河南南阳473000

出　　处：《中国CT和MRI杂志》2020年第4期145-147,共3页Chinese Journal of CT and MRI

摘　　要：目的比较磁共振血管造影(MRA)及128层4D螺旋CT(CTA)诊断糖尿病足(DF)下肢血管病变(PVD)的临床价值比较。方法回顾性分析医院2015年1月~2018年1月间收治的36例DF患者影像学检查资料,比较MRA与CTA在DF患者下肢血管病变中的应用价值。结果36名DF患者DSA共检查出624处狭窄段,其中膝上动脉469处,膝下动脉368处;320条血管中,1级狭窄98条(30.63%),2级狭窄56条(17.50%),3级狭窄101条(31.56%),4级狭窄65条(20.31%);MRA共检出577处狭窄段,其中膝上动脉439处,膝下动脉138处,320条下肢动脉中,1级狭窄92条(28.75%),2级狭窄51条(15.94%),3级狭窄106条(33.13%),4级狭窄71条(22.19%);CTA共检出587个狭窄段,其中膝上动脉445段,膝下动脉142段,320条下肢动脉中,1级狭窄99条(30.94%),2级狭窄54条(16.88%),3级狭窄104条(32.50%),4级狭窄63条(19.69%);以DSA检查结果作为金标准,MRA检查灵敏度为92.47%,特异度为95.56%,准确度为94.24%,CTA检查灵敏度为94.07%,特异度为96.40%,准确率为95.04%。结论CTA与MRA血管狭窄检出率相当。Objective To compare the clinical value of magnetic resonance angiography(MRA) and 128-slice 4D spiral CT(CTA) in the diagnosis of lower extremity vascular disease(PVD) of diabetic foot(DF). Methods The imaging findings of 36 patients with DF admitted between January 2015 and January 2018 in hospital were retrospectively analyzed. The application value of MRA and CTA in the lower extremity vascular lesions of DF patients were compared. Results A total of 624 stenosis segments were detected in 36 DF patients by DSA(including 469 upper knee arteries and 368 lower knee arteries), and there were 98(30.63%) of grade 1 stenosis, 56(17.50%) of grade 2 stenosis, 101(31.56%) of grade 3 stenosis and 65(20.31%) of grade 4 stenosis among 320 blood vessels. A total of 577 stenosis segments were detected by MRA 9 including 439 upper knee arteries and 138 lower knee arteries 0, and there were 92(28.75%) of grade 1 stenosis, 51(15.94%) of grade 2 stenosis, 106(33.13%) of grade 3 stenosis and 71(22.19%) of grade 4 stenosis among 320 lower limb arteries. A total of 587 stenosis segments were detected by CTA(including 445 upper knee arteries and 142 lower knee arteries), and there were 99(30.94%) of grade 1 stenosis, 54(16.88%) of grade 2 stenosis, 104(32.50%) of grade 3 stenosis and 63(19.69%) of grade 4 stenosis among 320 lower limb arteries. Taken DSA examination results as the gold standard, the sensitivity, specificity and accuracy were 92.47%, 95.56% and 94.24% of MRA, and were 94.07%, 96.40% and 95.04% of CTA. Conclusion The detection rate of vascular stenosis is comparable by CTA and MRA.

关 键 词：MRA CTA 糖尿病足 下肢血管病变 临床价值 

分 类 号：R587.2[医药卫生—内分泌] R445.2[医药卫生—内科学]