TISSUE IMAGING AT SUPERHARMONIC FREQUENCIES

摘要

Ultrasound imaging of tissue in medical applications is carried out by transmitting ultrasound energy into a target volume at at least a first fundamental frequency, receiving reflected and/or scattered ultrasound energy from the target volume; and detecting components of the received signal at multiple harmonics of the fundamental frequency or at one or more of the third to fifth harmonics of the fundamental frequency. An image of the target volume is generated using the detected harmonic components of the received signal. The second and higher harmonic components may be detected in two different groups and a compound image generated from these groups.