MediSono P25 EXP, User Manual

Page: 113 / 214

6 Acquiring Images
Basic User Manual 101
0
5
50
cm/s
Y-axis: Frequency
-50
X-axis: Time
−
The spectral Doppler line and the sample volume gate are used to locate the
qualitative analysis on the image.
−
The flow cursor needs to be adjusted parallel to the flow when measuring the
velocity.
3. Adjust the position and angle of the spectral Doppler line.
−
Position the sample volume gate on the spectral Doppler line by moving the
trackball upwards or downwards.
−
Adjust the angle of the spectral Doppler line by moving the trackball to the left or
the right.
4. Rotate the Angle knob on the control panel to adjust the angle of the flow cursor.
5. Press the Update key on the control panel to activate the CW mode.
The CW spectrum is displayed at the lower part of the screen after being activated, as
shown in Figure 6-18.
Figure 6-18 CW-Mode Imaging Screen
−
X-axis is the time scale.
−
Y-axis is Doppler frequency scale, including positive and negative indicators.
Rotate the Audio knob on the control panel to adjust the audio volume.
NOTE:
Once the CW-mode is activated, you can move the trackball to stop the Doppler
trace and adjust the sample volume gate. The system continues tracing if the
trackball is idle for more than 0.5s.