| 摘要 |
PURPOSE:To provide the ultrasonic diagnostic device which can prevent genera tion of a clinical problem without lowering the number of frames at the time of setting to a low flow velocity side of a flow velocity range in color Doppler imaging. CONSTITUTION:The device is related to an ultrasonic transmitting/receiving part 3 to which hatching is performed, a mixer part 4, and an MTI arithmetic part 5, and is different in respect of having a mixing frequency control means, and also, in respect of having a color Doppler data number changing means and a rate frequency (=PRF) changing means by selection, under the control of a host computer being a system controller. The mixing frequency control means, the color Doppler data number changing means and the rate frequency changing means exist in an internal memory of the host computer at the time of operation of an ultrasonic diagnostic device 1, and are constituted so as to control the operations of the mixer part 4, the MTI arithmetic part 5, and the ultrasonic transmitting/receiving part 3, respectively. |
