| 摘要 |
PURPOSE:To shorten an operation time and to relieve an operation burden by a method wherein an echo sounder transducer is controlled such that ultrasonic receipt made a plurality of times to obtain single ultrasonic raster and ultrasonic receipt made a plurality of times to obtain an FFT image by a frequency diffracting circuit by means of one Doppler are 81ternately effected without varying ultrasonic raster. CONSTITUTION:A control signal is outputted so that ultrasonic transmission and receipt made a plurality of time to obtain single ultrasonic raster B1 from a raster control part 15a and ultrasonic receipt made a plurality of time to obtain an FFT image from a one point Doppler b are alternately effected without varying ultrasonic raster B1. Transmission drive is made on an ultrasonic probe 1 by an echo sounder transducer circuit 2 to which the control signal is inputted. An ultrasonic pulse transmitted to an organism from the ultrasonic probe l produces a receipt signal accompanied with Doppler deviation due to a blood flow and is received by the ultrasonic probe 1 and the echo sounder transducer circuit 2. A B-mode is detected by a B-mode processing dividing means 3b, and a detecting signal therefrom is outputted to a DSC 6. The detecting signal is detected by a phase detecting circuit 3a to produce a signal formed with a Doppler deviation signal and a clutter component. |
