Sharma Sayesha, Lubrica Reggie Jayson, Song Minwoo, Vandse Rashmi, Boling Warren, Pillai Promod
Loma Linda University, Loma Linda, CA, USA.
Acta Neurochir Suppl. 2020;127:201-205. doi: 10.1007/978-3-030-04615-6_32.
Transcranial Doppler ultrasonography (TCD) is a noninvasive technique used to detect vasospasms following a subarachnoid hemorrhage. While the gold standard to evaluate vasospasms is angiography, this technique is invasive and poses additional risks as compared to TCD. TCD is performed by insonating circle of Willis arteries to measure cerebral flow velocity. TCD allows dynamic monitoring of CBF-V and vessel pulsatility, with a high temporal resolution. It is relatively inexpensive, repeatable, and portable; however, the performance of TCD is highly operator dependent and can be difficult, especially with inadequate acoustic windows. This review summarizes the use of transcranial Doppler ultrasonography (TCD) for the assessment of cerebral vasospasm.
经颅多普勒超声检查（TCD）是一种用于检测蛛网膜下腔出血后血管痉挛的无创技术。虽然评估血管痉挛的金标准是血管造影，但与TCD相比，该技术具有侵入性且存在额外风险。TCD通过对 Willis 动脉环进行超声检查来测量脑血流速度。TCD 能够以高时间分辨率动态监测脑血流速度（CBF-V）和血管搏动性。它相对便宜、可重复且便于携带；然而，TCD 的操作高度依赖操作人员，并且可能具有挑战性，尤其是在声窗不佳的情况下。本综述总结了经颅多普勒超声检查（TCD）在评估脑血管痉挛中的应用。
