Patent ID: 7929744
Filing Date: 2011-04-19
Classification: A61B,G01S,G06T

Abstract:
1. A method for color blood flow frame averaging performed by an ultrasonic apparatus, comprising the steps of: acquiring an input blood flow velocity of a current frame and an output blood flow velocity of a previous frame; determining whether the input blood flow velocity of the current frame is in an opposite direction to that of the output blood flow velocity of the previous frame; determining whether aliasing occurs to the output blood flow velocity of the previous frame if the input blood flow velocity of the current frame is in an opposite direction to that of the output blood flow velocity of the previous frame; and processing the input blood flow velocity of the current frame and the output blood flow velocity of the previous frame to obtain an output blood flow velocity of the current frame if aliasing occurs to the output blood flow velocity of the previous frame, wherein the parameters regarding the previous frame comprise any one of or any combination of: a blood flow velocity of the previous frame, blood flow energy of the previous frame, a blood flow variance of the previous frame, and an absolute value of a difference between the output blood flow velocity of the previous frame and the input blood flow velocity of the current frame.