Patent ID: 11969292
Assignee: FUJIFILM CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A

Claim 10:
11. A control method of an ultrasound diagnostic apparatus that includes an ultrasound probe including a transducer array and a diagnostic apparatus main body including a monitor, where the ultrasound probe and the diagnostic apparatus main body are wirelessly connected to each other; and a B-mode and a pulsed wave Doppler mode, the control method comprising:
in the ultrasound probe,
causing, via a transmitting and receiving circuit of the ultrasound probe, the transducer array to transmit an ultrasonic pulse toward a subject, and performing reception focusing processing on a reception signal output from the transducer array that has received an ultrasound echo from the subject to generate a sound ray signal,
generating, via a first processor of the ultrasound probe, a B-mode image based on the generated sound ray signal,
setting, via the first processor, a Doppler gate on the B-mode image,
setting, via the first processor, a number of a plurality of sampling points within the Doppler gate on the B-mode image,
generating, via the first processor, complex baseband signals at the plurality of sampling points based on the generated sound ray signal,
averaging, via the first processor, the complex the complex baseband signals at the plurality of sampling points to acquire average complex baseband signals, and
wirelessly transmitting, via a probe-side wireless communication circuit of the ultrasound probe, the acquired average complex baseband signals,
where a number of the plurality of sampling points in the Doppler gate is set such that a wireless transmission data amount per unit time required for wirelessly transmitting the complex baseband signals at the plurality of sampling points without averaging exceeds the wirelessly transmittable data amount and a wireless transmission data amount per unit time required for wirelessly transmitting the average complex baseband signals is equal to or less than the wirelessly transmittable data amount, and

in the diagnostic apparatus main body,
receiving, via a main body-side wireless communication circuit of the diagnostic apparatus body, the average complex baseband signals wirelessly transmitted from the ultrasound probe, and
performing, via a second processor of the diagnostic apparatus, a frequency analysis on the received average complex baseband signals to generate a Doppler image, and displaying the Doppler image on the monitor.