How does ultrasound measure blood flow speed?

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Tags

1. #obtained
2. #tissue
3. #imaging
4. #addition
5. #nominal
6. #wavelength
7. #arterial
8. #ultrasound
9. #using
10. #velocity
11. #relationship
12. #measure
13. #blood
14. #making
15. #techniques
16. #walls
17. #doppler
18. #effect
19. #sound