摘要
目的 探讨经颅多普勒超声（TCD）诊断颅内段后循环动脉狭窄或闭塞的敏感性和特异性.方法 选取颅内段后循环动脉狭窄或闭塞的患者72例,进行TCD和CT血管造影术（CTA）检查,并进行对比分析.结果 与CTA相比,TCD对颅内段后循环动脉检查的敏感性为82.50％,特异性为94.64％,阳性预测值为91.67％,阴性预测值为88.33％,准确性为89.58％.结论 TCD对颅内段后循环动脉病变的诊断特异性高,敏感性一般,其中对颅内段椎动脉的诊断准确性最高.TCD可作为颅内动脉病变的早期筛查手段.
Objective To investigate the sensitivity and specificity of transcranial Doppler （TCD） diagnosis for intracranial posterior circulation artery stenosis or occlusion. Methods Seventy-two cases of patients treated for posterior circulation intracranial artery stenosis or occlusion were chosen, TCD and CT angiography （CTA） tests were carried out and the results were compared and analyzed. Results Compared with CTA, the sensitivity for period of posterior circulation intracranial arteries by TCD was 82.50%, while specificity reached 94.64%. Positive predictive value attained 91.67%, while negative predictive value reached 88.33% and the accuracy was 89.58%. Conclusions TCD diagnosis for period of posterior circulation intracranial arterial has high specificity, normal sensitivity, and the highest diagnosis accuracy for intracranial segment of vertebral artery. TCD can serve as early inspecting method for intracranial artery.
出处
《国际生物医学工程杂志》
CAS
2014年第6期355-358,共4页
International Journal of Biomedical Engineering
