| 摘要 |
PURPOSE:To easily grasp the variation of a blood flow speed of a specific part by displaying a tomography image in a living body and blood flow information on the screen, and constituting the Doppler tomography ultrasonic diagnostic device by providing a designating means, a storage means and a display means. CONSTITUTION:First of all, a probe 1 is driven by a T/R circuit 2, and an ultrasonic beam is emitted to the inside of a living body. A reflected echo signal reflected by the inside of the living body is received by the probe 1, and subjected to a prescribed waveform shaping processing and an amplification processing by the T/R circuit 2 and an AMP 3. An output of the AMP 3 is inputted to a Doppler detecting circuit 4 and a tomography data processing system 25. In the Doppler detecting circuit 4, a prescribed detection processing and a filter processing are performed. An output of the Doppler detecting circuit 4 is inputted to an average flow velocity arithmetic circuit 5. In the average flow velocity arithmetic circuit 5, an average flow velocity of a blood flow is calculated based on blood flow data obtained by the Doppler detecting circuit 4. An output of the average flow velocity arithmetic circuit 5 is inputted to a display memory 13. |
