Ultrasound imaging equipment and method

摘要

In ultrasonic imaging, a physically consistent value of blood flow velocity is measured in the vicinity of body tissues. The ultrasound imaging apparatus comprises a shape extraction part for recognizing shape data of biological tissues by using echo signals reflected from a test subject irradiated with ultrasonic waves, a flow velocity distribution acquisition part for detecting blood flow velocities in the vicinity of the tissues from the echo signals, and a velocity determination part for extracting velocity information desired by a tester (objective velocity information). The velocity determination part sets a model of the objective blood flow, and determines a velocity of actually measured velocity distribution consistent with velocity distribution estimated from the model.

主权项

1. An ultrasound imaging apparatus, comprising:
an ultrasound probe configured to transmit ultrasonic waves to a test subject and receiving echo signals reflected by the test subject; and a computer storing executable functions that cause the ultrasound imaging apparatus to perform:
processing the echo signals received by the ultrasound probe, wherein the echo signals are frequency modulated signals depending on a velocity of a fluid contained in the test subject;acquiring a Doppler waveform which is a velocity distribution of the fluid from the frequency modulated signals; anddetermining a velocity information from the Doppler waveform;setting a jet model of the velocity information; anddetermining the velocity information so that the jet model and the velocity distribution are consistent with each other.