Adding Color
LOGIQ 500 Basic Users Manual
2276612–100 Rev. 0
5–33
Controls
Color Doppler Gain
CFM/Spectrum Invert
Description
Amplifies the overall strength of the
echoes being processed in the Color
Doppler section.
Allows for viewing blood flow from a
different perspective, i.e., red away
(negative velocities) and blue toward
(positive velocities). Color reverses a
real-time or frozen image.
NOTE: Invert reverses the
forward/reverse color assignment.
Accessing/
Changing
Gain values change depending on the
probe; gain is not associated with a
particular position of the knob.
To increase gain, turn the Gain knob
clockwise.
To decrease gain, turn the Gain knob
counterclockwise.
To reverse the color assignment, press
CFM/Spect Invert.
Benefits
Allows control of the amount of color within
a vessel.
Allows viewing of blood flow according to
personal preference, or display proper
color without changing probe orientation.
Values
The settings range is 32 levels, but values
are not displayed on the image monitor.
Usually set the dial in the middle,
depending on the vessel.
Invert and non-invert.
Affects on
Other Controls
The system automatically adjusts the gain
based on acoustic output.
Bioeffects
Color Doppler gain has no affect on
acoustic output. However, with increased
color Doppler gain, the output level can
usually be reduced to produce an
equivalent spectrum image quality.
When
“Spec. Inv. in Triplex” preset on
Custom Display page 16 is set to
Simultaneous, the Doppler spectrum is
also inverted.
Summary of Contents for 500
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