Ultrasonic method and apparatus for tissue characterization and imaging nonlinear parameter

摘要

A method and apparatus for tissue characterization and imaging of nonlinear parameter data include an array of ultrasonic transducer elements to transmit ultrasonic pulses along a beam toward the tissue and to receive echoes of the ultrasonic pulses. The ultrasonic transducer elements are driven so that the ultrasonic pulses are transmitted at different power levels. The echoes of the ultrasonic pulses are analyzed at each of the different power levels to obtain the nonlinear parameter data along the beam. The beam is scanned in a two-dimensional plane of the tissue. The nonlinear parameter data is displayed according to the two-dimensional plane.