TCD Ultrasound

What is a Transcranial Doppler (TCD) Ultrasound?

TCD is a noninvasive and painless ultrasound technique that uses sound waves to evaluate blood flow (blood circulation) in and around the brain. There is no special contrast or radiation involved in the test.

Who should get a TCD Ultrasound?

Ultrasound of Transcranial Doppler is usually ordered by doctors if you have these indications:

  • Vasospasm
  • brain aneurysm
  • Sickle cell anemia
  • Ischemic stroke
  • Intracranial stenosis
  • Cerebral microemboli
  • Patent Foramen Ovale

Is there radiation involved?

No. Unlike X-ray imaging, there is no ionizing radiation exposure associated with ultrasound imaging.

When will I receive my results?

Once completed, you will receive your results within 3-5 business days in your LabFinder portal.

How do I prepare? Do I need to fast?

Please refer to the simple preparation guidelines or consult with your doctor or radiology center where you are being treated. Do not forget to bring your LabFinder Order and Insurance Card to your appointment.


Book a Ultrasound Transcranial Doppler (TCD)
This is for educational purposes only. LabFinder does not provide medical advice, diagnosis or treatment. All users should consult with a medical provider in person for any health concerns.
How It Works

How it Works

  • Select your test & location
  • Visit your appointment
  • Access your results
How It Works