A method of analyzing an ultrasound image of a target volume having therein at least two types of substances is disclosed. The method comprises: dividing a region-of-interest of the image to a set of mini-segments. The method further comprises, for each mini-segment, calculating at least two representative...http://www.google.com/patents/US7248725?utm_source=gb-gplus-sharePatent US7248725 - Methods and apparatus for analyzing ultrasound images