Ultrasonic diagnostic imaging of response frequency differing from transmit frequency

摘要: An ultrasonic diagnostic imaging system and methods are described which produces images from harmonic echo components of a transmitted fundamental frequency. Preferably, programmable digital filter is used to pass for image processing the exclusion frequency signals. In preferred embodiment, artifacts removed by producing decorrelated replicas signals, then combined imaging. To produce an in presence depth dependent attenuation high both signals processed blended