Parametric harmonic biological tissue image generation method involves focusing received signals to beam to form reception vector of acoustic data acquired along reception scan line

摘要

The method involves transmitting wave energy during transmission activation, whereby the wave energy is focused at a transmission focal point and has a transmission pulse spectrum centered on a fundamental frequency, converting the wave energy transmitted and fed back from the material to form a set of received signals, focusing the received signals to a beam to form a reception vector containing acoustic data acquired along a reception scan line, bandpass filtering signal components with a filter whose center frequency is lower than the fundamental frequency to form a filtered reception vector and processing the vector for display. Independent claims are also included for an image generation system and for a method of representing ultrasonic reflection characteristics.