1. A simple new method for in vivo measurement of ultrasound velocity in human liver and its clinical usefulness;Akamatsu;Jpn. J. Med. Ultrasonics,1985
2. A crossed beam method for ultrasonic speed measurement in tissue;Haumschild,1983
3. In vivo measurement of mean sound speed using focus adjustment method (FAM) in ultrasonotomograph;Ogawa;Jpn. J. Med. Ultrasonics,1985
4. Measurement of velocity of propagation from ultrasonic pulse echo data;Robinson;Ultrasound Med. Biol.,1982
5. A proposal of crossed beam method using a linear array probe for in vivo measurement of sound velocity of tissue;Sumino,1985