目的探讨TCD临床诊断前循环动 脉狭窄的准确性。方法 本研究分析急性 脑梗死患者入院后完成TCD并经CTA进一步 检查颅内动脉情况的患者。对急性脑梗死 存在前循环动脉狭窄患者对比TCD与CTA检 查的符合率。结果 前循环动脉狭窄检测 对比结果为TCD与CTA符合率较高，二者无 统计学差异。TCD检测MCA准确性最高，重 度及中度等级MCA狭窄诊断准确性较轻度 等级狭窄高。结论 1、TCD与CTA检测前循 环动脉狭窄符合率较高、无统计学差异。 2、TCD诊断MCA狭窄准确率最高。3、重度 及中度等级MCA狭窄诊断准确性较轻度等 级狭窄高。

Objective To explore the reliability of TCD in the diagnosis of anterior circulation stenosis. Methods Acute cerebral infarction patients who met the inclusion criteria as well as received TCD and CTA inspection were recruited. The test results of TCD and CTA were compared. Results TCD testing corresponding anterior circulation stenosis is not statistically different witrh CTA, they have a good consistency. The accuracy of TCD in testing the MCA blood vessels is the highest. The coincidence rate of TCD in diagnosing moderate and severe MCA stenosis was higher than that of mild stenosis. Conclusions 1. For the diagnosis of anterior circulation stenosis, TCD and CTA results are no statistically different. 2. The accuracy and sensitivity of TCD is the highest applying on MCA. 3. The coincidence rate of TCD in diagnosing moderate and severe MCA stenosis was higher than that of mild stenosis.