Ultrasonic beamwidth effect on evaluation of attenuation by sampling medical B-mode imaging data. - Kawan Soetanto; Shigeo Ohtsuki; Motoyoshi Okujima; Motonao Tanaka (ICASSP, 1986)

A method of ultrasonic 3-D computed velocimetry. - Yukiko Ogura; Kageyoshi Katakura; Motoyoshi Okujima (IEEE Trans. Biomed. Eng., 1997)