Course

Transcranial Doppler (TCD) in stroke — what it measures and how it complements CTA/MRA (Advanced)

Advanced course: TCD ultrasound can measure blood flow in major brain arteries and detect vasospasm or emboli signals in some contexts. Learn what it can/can’t tell you, and how it relates to CTA/MRA and clinical decisions

FoundationsCaregiver, SurvivorAdvanced45 minPlain (6–8)

Educational only

Educational only — not medical advice.

What you'll learn

  • Understand what TCD is (blood flow velocity ultrasound)
  • Know common stroke contexts where TCD is used (vasospasm monitoring, emboli detection)
  • Understand limitations and why CTA/MRA may still be needed
  • Ask clearer questions when TCD results are mentioned

Practice check

Check your understanding

A few untimed questions. Pick an answer to see instant feedback, then continue to the next lesson.

0 of 3 answered

Question 1

1. TCD measures blood flow velocity signals and does not directly show brain tissue injury.

Question 2

2. TCD may be used to monitor…

Question 3

3. CTA/MRA are primarily used to…