An ultrasound diagnostic apparatus comprises an ultrasound probe including a transducer array for transmitting and receiving ultrasound a diagnostic apparatus body for generating ultrasound images a communications cable connecting the ultrasound probe and the apparatus body with each other an apparatus body-side connector for connecting one end of the communications cable with the diagnostic apparatus body analog-to-digital converters for processing reception signals from the transducer array an electrical-to-optical conversion unit for converting the processed reception signals into optical signals an optical fiber provided in the communications cable in order to transmit the reception signals as optical signals and an optical-to-electrical conversion unit for converting the transmitted reception signals into electric signals. The diagnostic apparatus body generates an ultrasound image based on the reception signals as converted by the optical-to-electrical conversion unit into electric signals.
