Lagi A, Cencetti S, Bacalli S, Scerra C, Cipriani M
Unità Operativa di Medicina Interna I, Ospedale S. Maria Nuova di Firenze.
Ann Ital Med Int. 1995 Oct-Dec;10(4):215-7.
The diagnostic procedures for the assessment of transient ischemic attacks (TIA) include both brain imaging (computed tomography, nuclear magnetic resonance) and cerebrovascular investigation by means of ultrasound studies and angiography. Transcranial Doppler sonography (TCD) has not yet become a widely used diagnostic tool, although it allows noninvasive investigation of the intracranial cerebral circulation. The aim of this study was to assess the value of TCD investigation in patients who suffered from TIA. Eighty-one consecutive patients admitted to our General Medicine Department with a diagnosis of TIA underwent cranial computed tomography, ultrasound investigation of the extracranial cerebral arteries, and TCD.
39% of the TCD findings were not significant; TCD findings were highly significant in 18% of the patients with TIA, mainly for intracranial arterial stenoses and symptomatic subclavian steal; the other abnormal TCD findings were nonspecific, but in all these cases TCD yielded information on the efficiency of intracranial collateralization and the mechanisms regulating cerebral hemodynamics. These results suggest that TCD is a useful tool for the assessment of TIA.
评估短暂性脑缺血发作（TIA）的诊断程序包括脑部成像（计算机断层扫描、核磁共振）以及通过超声检查和血管造影进行的脑血管检查。经颅多普勒超声检查（TCD）尚未成为广泛使用的诊断工具，尽管它可以对颅内脑循环进行无创检查。本研究的目的是评估TCD检查对TIA患者的价值。81例连续入住我院普通内科且诊断为TIA的患者接受了头颅计算机断层扫描、颅外脑动脉超声检查和TCD检查。
39%的TCD检查结果无显著意义；在18%的TIA患者中，TCD检查结果具有高度显著性，主要用于颅内动脉狭窄和有症状的锁骨下动脉盗血；其他异常的TCD检查结果不具有特异性，但在所有这些病例中，TCD提供了关于颅内侧支循环效率和调节脑血流动力学机制的信息。这些结果表明，TCD是评估TIA的有用工具。
