A comparison of abdominal ECG and Doppler ultrasound for fetal heart rate detection

by Ibrahimy, Muhammad Ibn, Ali, M. A. Mohd, Zahedi, Edmond, Tsuruoka, Shinji
Published 2001

Tissue characterization of local myocardium using phase frequency spectrum of ultrasonic RF signal

by Ishii, Hirotake, Tsuruoka, Shinji, Ibrahimy, Muhammad Ibn, Kimura, Fumitaka, Wakabayashi, Tetsushi, Ohyama, Wataru, Sekioka, Kiyotsugu
Published 2003