1. An ultrasonic imaging system for transmitting an ultrasonic pulse to a living body, receiving the ultrasonic pulse reflected by said living body, and obtaining B-mode image data of said living body, comprising: a structure extractor for extracting structure-emphasized image data in which a structure of a tissue in said living body is emphasized from said B-mode image data; a texture pattern extractor for extracting texture-emphasized image data in which a texture pattern coming from properties of a tissue in said living body is emphasized from said B-mode image data; an image synthesizer for obtaining a synthesized image by weighting and combining said structure-emphasized image data and said texture-emphasized image data; and a display for displaying at least one of said structure-emphasized image data, said texture-emphasized image data, and said synthesized image.