Delivering innovative ultrasonography technology for rapid, non-invasive, real-time measures of cerebrovascular function.

What is Transcranial Doppler?

Transcranial Doppler (TCD) and Transcranial Colour Doppler (TCCD) are types of Doppler ultrasonography that measure the velocity of blood flow through the brain’s blood vessels by measuring the echoes of ultrasound waves moving transcranially (through the cranium).