Acclarix LX9 Series Diagnostic Ultrasound System User Manual
5.4 CW Mode
5.4.1. Using CW Mode
CW mode is only available on phased array transducer.
1. Perform the image scanning to get a good image in B mode or B+Color(DPI/DPDI) mode;
2. Press <CW> on the console to display sample line;
3. Use the trackball and touch controls to adjust the position of the sample line;
4. Press <Update> on the console to enter B+CW or B+Color(PDI/DPDI)+CW mode and display
Doppler strip.
5. Adjust image parameters to optimize the Doppler strip.
6. When spectrum is displayed, pressing <Update> toggles between acquiring the Doppler strip and
acquiring the reference image.
In CW mode, pressing on <PW> on the console will switch PW mode directly.
5.4.2. CW Image Optimization
The following touch controls can be used to optimize the CW image.
Scale adjusts the range of velocities that are displayed. Upward
presses increase scale and downward presses decrease it.
The Baseline control adjusts the Doppler baseline. Upward
presses move the baseline up on the screen and downward
presses move the baseline down.
Normally, signals above the baseline are positive velocities
(moving toward the transducer). However, when Invert is
pressed then negative velocities are above the baseline. Invert
does not affect the baseline position.
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