Transcranial Doppler (TCD) is a rapid, inexpensive, safe and reliable diagnostic tool that provides real-time measures of cerebrovascular function. It can be repeated multiple times and can be used for continuous monitoring if needed. It involves the use of low-frequency (≤2 MHz) waves to insonate the basal cerebral arteries through relatively thin bone windows. TCD allows dynamic monitoring of Cerebral Blood Flow Velocity (CBF-V) and vessel pulsatility, with a high temporal resolution.
The current article describes the potential role of this non-invasive technique in assessing the cerebral blood flow. Transcranial Doppler (TCD) sonography allows real time measurement of blood flow velocity in intracranial arteries with high temporal resolution and has been used for over two decades to assess cerebral hemodynamics in healthy adults and in disease states. TCD can also be utilized to…
