Method and system for tissue imaging and analysis

摘要

A method for detecting abnormal tissue in a region of healthy tissue, comprising:
a) making a first measurement of ultrasound backscattered from the region;b) heating the region, at least after the first measurement;c) making one or more additional measurements of ultrasound backscattered from the region after some or all of the heating; andd) analyzing the measurements to detect the abnormal tissue by finding differences in changes, caused by the heating, of one or more characteristics of ultrasound backscattering, between the abnormal tissue and the healthy tissue.

主权项

1. A method for distinguishing different tissue in a region of tissue based on their different responses to heating, comprising:
a) making a first measurement of ultrasound backscattered from the region; b) heating the different tissues in the region, at least after the first measurement, causing the temperature at each point in the region to rise by no more than 4 degrees Celsius; c) making one or more additional measurements of ultrasound backscattered from the region after some or all of the heating; and d) analyzing the measurements to distinguish the different tissue by finding differences in changes, caused by the heating, of one or more characteristics of ultrasound backscattering, between the tissue; wherein said analyzing comprises calculating a frequency shift of backscattered ultrasound as a function of position from which it is scattered;wherein the region is greater than 1 cm in diameter.