| 摘要 |
PURPOSE:To keep a frame rate constant even if scanning width is varied. CONSTITUTION:The ultrasonic diagnostic device for color flow imaging is provided with a transmitting beam former 2 for forming a transmitting sound ray by inputting a trigger, a receiving beam former 5 for phasing and adding a receiving signal for forming the sound ray, an input device 10 for inputting setting of a scanning angle, a scanning angle information generating means 9 for generating scanning angle information by a set value by the input device 10, a control means 11 for controlling opening width by the scanning angle information from the scanning angle information generating means 9, and an analyzing means 6 for Doppler-detecting an output of the receiving beam former 5 and outputting a color flow imaging signal. Also, this ultrasonic diagnostic device is constituted so that the control means 11 controls one sound ray angle thetaso that the number of sound rays (n) becomes constant in accordance with a scanning angle THETA. |
