Patent ID: 6827685
Filing Date: 2004-12-07
Classification: G01S,G06T

Abstract:
In a method or a system for generating an ultrasound image in which ultrasound pulses comprising amplitude modulated signals are transmitted into a specimen and echoes generated by the ultrasound pulses are received from the specimen, a method for reducing speckle in the resulting ultrasound image comprising the steps of(a) transmitting two or more ultrasound firings, said transmitting step including transmitting at least a first wide-band waveform and a second wide-band waveform at a fundamental frequency, (b) combining two or more of the firings coherently to extract the tissue-generated harmonic components thereof, (c) detecting the outputs of the coherent sums and detecting one or more firings before coherent sum, and (d) combining all detected outputs to form the compounded image.