Color coded blood flow velocity display equipment

Details Color coded blood flow velocity display equipment Color coded blood flow velocity display equipment

1977-07-29

1980-06-03

Michell, Robert W.

Surgery

Truss

Pad

73194A, A61B 1000

Patent

active

042056870

ABSTRACT:
A method and apparatus are disclosed for providing a picture of a portion of a blood vessel by a color coded display of normal and increased blood flow peak velocities at a plurality of locations within the blood vessel portion from ultrasonic doppler velocity signals proportional to blood flow velocity within the blood vessel.
Velocity signals below a predetermined minimum are rejected. Velocity signals above the predetermined minimum are separated into a plurality of selected ranges representing normal and increased blood flow peak velocity ranges. Each of these normal and increased blood flow peak velocity ranges is then displayed as a discrete color.

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