Scanning Modes
Vivid S5/Vivid S6 User Manual 163
R2424458-100 Rev. 2
Optimizing Color Mode
Refer to page 593
about creating pre-
sets.
The use of preset gives optimum performance with minimum
adjustment. If necessary, the following controls can be adjusted
to further optimize the Color Mode display:
• Adjust the Active mode gain to set the gain in the color
flow area.
The scale value may
affect FPS, Low Ve-
locity Reject, and
Sample Volume.
• Adjust Scale to the highest setting that provides adequate
flow detection.
• Adjust Low Velocity Reject to remove low velocity blood
flow and tissue movement that reduces image quality.
• Adjust Variance to detect flow disturbances.
• Adjust Sample volume (SV) to a low setting for better flow
resolution, or a higher setting to more easily locate
disturbed flows
Frequency setting
may affect FPS, SV
and Low Velocity
Reject.
• Adjust Frequency to optimize the color flow display. Higher
settings improve resolution. Lower settings improve depth
penetration and sensitivity. This does not affect the
frequency used for 2D and M-Mode.
The Power setting
affects all other op-
erating modes.
• Adjust Power to obtain an acceptable image using the
lowest setting possible.
Adjust the following settings to further optimize display of the
image:
• Use Invert to reverse the color assignments in the color
flow area of the display.
• Use Tissue priority to emphasize either the color flow
overlay, or the underlying greyscale tissue detail.
• Use Baseline to emphasize flow either toward or away
from the probe.
• Use Radial and Lateral Averaging to reduce noise in the
color flow area. Radial and Lateral Averaging smooths the
image by averaging collected data along the same
horizontal line. An increase of the lateral averaging will
reduce noise, but this will also reduce the lateral resolution.
CAUTION
Use all noise reduction controls with care. Excessive
application may obscure low level diagnostic information.
To Next Page
Loading...
Need help?
General
