The intensity of colour in Doppler is determined by:
A. Direction flow
B. Velocity of flow
C. Strength of returning echo
D. None of the above
A. Direction flow
B. Velocity of flow
C. Strength of returning echo
D. None of the above
Ans. B.
In a Colour
Doppler: Colours are used to represent direction of flow towards &away from the transducer; usually blue
is towards &red is away from
transducer Shades (intensity of colour) represent velocity of flow; the paler
shades representing higher velocity
• Power Doppler:
Is good for showing areas of flowing blood, particularly when it is moving
slowly or in small vessels; but at the expense of losing directional &
velocity information.
