摘要
目的探讨64层螺旋CT血管造影(64-SCTA)诊断短暂性脑缺血发作(TIA)病因的价值。方法选择临床拟诊为TIA患者40例进行头颈联合64-SCTA和数字减影血管造影(DSA)检查,观察头颈部血管病变显示情况。以DSA为金标准,计算64-SCTA检出病变的敏感度、特异度和准确率,并比较64-SCTA与DSA对血管狭窄程度的评价结果。结果40例TIA患者有440支血管得到评价,64-SCTA对TIA患者头颈血管病变检出的敏感度、特异度及准确率分别为94.12%、98.52%和98.19%,64-SCTA及DSA对病变的检出率差异无统计学意义(χ2=0.066,P=0.798);64-SCTA目测法对血管狭窄率的评估与DSA具有较高的符合率(31/32,96.88%)。结论头颈联合64-SCTA对TIA患者头颈血管病变的检出具有较高的敏感度、特异度和准确率,对TIA的病因诊断具有重要临床价值。
Objective To explore the value of 64-slice CT angiography （64-SCTA） in etiological diagnosis of transient ischemic attack （TIA）. Methods Forty patients with clinically primary diagnosed TIA underwent 64-SCTA and digital subtraction angiography （DSA）, and the lesions of intracranial and cervical arteries were displayed. Taking DSA as gold standard, the sensitivity, specificity and accuracy rate of 64-SCTA were calculated respectively, and the degree of angiostenosis was evaluated with 64-SCTA. Results A total of 440 blood vessels were evaluated in 40 patients. The sensitivity, specificity and accuracy rate of 64-SCTA was 94.12%, 98.52% and 98. 19%, respectively. The difference of detection rate between 64 SCTA and DSA bad no statistical difference （χ^2 =0. 066,P=0. 798）; the conclusion of ocular estimate with 64-SCTA had higher coincidence （31/32,96.88%） with that of DSA. Conclusion Being valuable in etiological diagnosis of TIA, 64- SCTA has high sensitivity, specificity and accuracy rate.
出处
《中国医学影像技术》
CSCD
北大核心
2010年第5期828-831,共4页
Chinese Journal of Medical Imaging Technology
基金
江苏省淮安市科技局科技支撑计划(HAS2009001-4)
