Real-time blood-flow imaging system using ultrasonic doppler techniques. - Chihiro Kasai; Akimitsu Harada; Kouroku Namekawa (Syst. Comput. Jpn., 1988)

Clinical usefulness of wave intensity analysis. - Motoaki Sugawara; Kiyomi Niki; Nobuyuki Ohte; Takashi Okada; Akimitsu Harada (Medical Biol. Eng. Comput., 2009)