D
IRECTION 5771498-100, REVISION 6 VENUE™ SERVICE MANUAL
Chapter 4 - General Procedures and Functional Checks 4-17
PRELIMINARY
•Adjust Gain and TGC controls to adjust the range to be imaged.
•Use the Frequency (move to higher frequencies) or the Frame rate control (move to lower frame
rate) to increase resolution in image.
•Adjust Dynamic range to optimize the useful range of incoming echoes to the available greyscale.
•Adjust Compress to further optimize the display.
•Adjust Reject to reduce noise while taking care not to eliminate significant low-level diagnostic
information.
4-3-4-5 Using Color Mode
4-3-4-5-1 Color 2D
1) From an optimized 2D image, press Color.
2) Position the ROI frame over the area to be examined.
3) Press Select. The instruction Size should be highlighted.
4) Adjust the dimension of the ROI.
4-3-4-5-2 Color M-Mode
1) From M-Mode press Color.
2) Position the color area in the M-Mode display.
3) Press Select. The instruction Size should be highlighted.
4) Adjust the dimension of the color area.
4-3-5 PW/CW Doppler Mode Checks
4-3-5-1 Introduction
PW and CW Doppler modes are used to measure velocity (most often in blood).
Doppler mode can be done with a special pencil probe or with an ordinary probe. By using an ordinary
probe, you can first bring up a 2D picture for navigation purpose and then add PW/CW Doppler.
4-3-5-2 PW and CW Doppler Overview
Related information:
Refer to the Venue™ User Manual.
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