| 摘要 |
PURPOSE:To provide an ultrasonic wave diagnosis device which enhances distance accuracy within a range of measurement or S/N. CONSTITUTION:The device is provided with a probe 101 transmitting and receiving ultrasonic waves (burst waves), a transmitting system 102 driving the probe 101, and with a receiving circuit 103 giving receiving directivity to the direction identical to the direction at the time of transmitting to reflection echo received by the probe 101. And furthermore, the device is also equipped with a doppler mode processing system 105 which performs specified signal processing for output signals from a receiving circuit 103 to obtain a frequency spectrum, a control circuit 107 executing the specified control of the transmitting system 102 and the doppler mode processing system 105, and with a sample volume setting section 108 which sets the measurement area (space length), measurement position (depth) and the like of a measurement range (sample volume) obtaining a frequency spectrum. |
