摘要
目的 :探讨TCD在后循环脑梗死患者动脉狭窄诊断中的临床价值。方法 :收集82例单纯后循环脑梗死患者,均行TCD和CTA检查,以CTA检查结果为标准,分析TCD诊断后循环动脉狭窄的敏感度、特异度、阳性预测值、阴性预测值、阳性似然比、阴性似然比和Kappa值。结果:82例共检查后循环血管410条,CTA诊断血管狭窄51条,TCD诊断血管狭窄40条,其中34条与CTA诊断结果相符,TCD诊断大脑后动脉、基底动脉、椎动脉狭窄分别为13、7、20条,CTA诊断大脑后动脉、基底动脉、椎动脉狭窄分别为17、9、25条;TCD诊断大脑后动脉、基底动脉、椎动脉狭窄的敏感度分别为64.7%、66.7%、76.0%,特异度分别为96.9%、96.9%、98.3%,阳性似然比分别为17.5、21.5、44.7,阴性似然比分别为0.36、0.34、0.24,Kappa值分别为0.67、0.69、0.42。结论:TCD诊断后循环动脉狭窄与CTA具有较高的一致性,为后循环脑梗死的病因诊断提供了依据,是后循环脑梗死重要的辅助检查方法。
Objective：To investigate the clinical value of transcranial Doppler （TCD） in diagnosis of posterior circulation artery stenosis in patients with cerebral infarction. Methods：82 patients with simple posterior circulation cerebral infarction were ad- mitted. All patients underwent TCD and CT angiography （CTA） examination. Taking the findings of CTA as a standard ,the sensitivity,specificity,positive predictive value and negative predictive value,positive and negative likelihood ratios and Kappa values of TCD examination in the diagnosis of posterior circulation artery stenosis were analyzed. Results：410 posterior circulation vascular in 82 patients were examined,51 vascular stenosis were diagnosed by CTA,and 40 vascular stenosis were diagnosed by TCD,including 34 vascular stenosis the same as CTA. Vascular stenosis diagnosed by TCD of posterior cerebral artery,basilar artery and vertebral artery were 13,7,20,respectively,and that of CTA were 17,9,25,respectively. The sensitivity of TCD in the diagnosis of posterior cerebral artery,basilar artery and vertebral artery stenosis were 64.7%,66.7% and 76% re spectively;the specificity were 96.9% ,96.9% ,98.3% ,respectively;the positive likelihood ratio were 17.5,21.5,44.7,respectively; the negative likelihood ratio were 0.36,0.34,0.24,respectively;and Kappa values were 0.67,0.69,0.42 respectively. Conclusion： TCD in diagnosis of posterior circulation artery stenosis is highly consistent with CTA,and it offers the etiological diagnosis of cerebral infarction of posterior circulation,so it is an important auxiliary examination in patients with cerebral infarction.
出处
《中国中西医结合影像学杂志》
2015年第5期515-517,共3页
Chinese Imaging Journal of Integrated Traditional and Western Medicine
关键词
椎底动脉供血不足
梗塞
大脑后动脉
超声检查
多普勒
经颅
体层摄影术
X线计算机
血管造影术
Vertebrobasilar insufficiency
Infaction, posterior cerebral artery
Ultrasonography, Doppler,transcranial
Tomography, X-ray computed
Angiography
