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目的 :了解经颅多普勒 ( TCD)检测对短暂性脑缺血发作 ( TIA)的诊断价值。方法 :对 2 6例临床诊断TIA患者进行 TCD检测并与对照组 3 0例进行对比。结果 :2 6例 TIA患者流速异常、双侧流速不对称、频谱形态异常分别为 1 7,4 ,1 9例 ,对照组分别为 3 ,2 ,7例。TIA组异常例数为 2 1例 ,占 80 % ,而对照组为 7例 ,占 2 3 % ,两组比较差异有显著性 ,P<0 .0 1。结论 :TCD检测对 TIA的诊断分型、定位、病变程度 ,预后判断和推测病因提供了客观依据 ;对指导早期治疗、预防脑梗死发生具有重要价值。
Objective: To understand the diagnostic value of transcranial Doppler (TCD) in the diagnosis of transient ischemic attack (TIA). Methods Twenty-six TIA patients with clinical diagnoses were examined by TCD and compared with 30 controls. Results: Twenty-six patients with TIA had abnormal flow velocity, bilateral flow velocity asymmetry, and frequency spectrum abnormalities were 17.4 and 19 respectively, while those in control group were 3, 2 and 7, respectively. The number of abnormal cases in TIA group was 21 cases, accounting for 80%, while the control group was 7 cases, accounting for 23%. There was significant difference between the two groups (P <0.01). Conclusion: TCD provides an objective basis for the diagnosis, location, degree of lesion, prognosis and reasoning of TIA. It is of great value in guiding early treatment and preventing cerebral infarction.