Transcranial Doppler Ultrasonography
Transcranial Doppler ultrasonography uses sound waves to measure blood circulation in the brain.
During the procedure, a smooth probe is gently moved over the scalp to transmit high-frequency sound waves through the skull. The sound waves bounce off moving blood cells, and the information from the reflected sound waves is recorded and displayed on a computer screen.
Transcranial Doppler ultrasonography may be used to diagnose blood vessel disorders, such as:
- Blood vessel abnormalities (vascular malformations)
- Blood clots
- Constriction of blood vessels (vasospasm)
- Narrowing or blockages of blood vessels
You may be a good candidate for transcranial Doppler ultrasonography if you are having symptoms of a blood vessel disorder.
The procedure is painless and does not involve needles, dyes, or radiation.
Request an Appointment
- Date of last review: January 6, 2017