Color coded blood flow velocity display equipment

摘要

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.