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A member asked:
What do the blue and red spots on a sonogram mean?
A doctor has provided 1 answer
Usually blood flow: Most u/s images are not done with the 'doppler' probe turned on and are a 'black and white' image. The doppler allows the detection of movements toward or away from the probe (like blood coming into the area in an atery, or leavbing in a vein) these areas are coded red and blue by the computer processing the signal.
Answered 11/2/2019
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