GE LOGIQ V5 Service Manual page 102

GE
D 5496012-100, R
IRECTION
4-3-9-2 Color Flow Mode Controls
Table 4-5
Control
Flow Selection
Gain
Scale (Velocity
Scale)
Wall Filter
Size/Position
Invert (Color Invert) No
Baseline
Angle Steer
Accumulation
Color Flow Line
Density
Map
Map Compress
Threshold
Frame Average
Transparency Map
Spatial Filter
Flash Suppression
Packet Size
Sample Volume
4 - 20
3
EVISION
Color Flow Mode Controls
Possible Bioeffect
No
No
Yes
No
Yes
No
Yes
No
Yes
No
No
No
No
No
No
No
Yes
Yes
Section 4-3 - General Procedure
Description/Benefit
In the Lower Extremity Vein (LEV) and Abdominal
applications, you can quickly select the flow state via a
shortcut on the Color Flow Mode menu.
Gain amplifies the overall strength of echoes processed in
the Color Flow window or spectral Doppler timeline.
Increases/decreases the Scale on the color bar.
Filters out low flow velocity signals. It helps get rid of
motion artifacts caused from breathing and other patient
motion.
Adjust size and position of the color window.
Lets you view blood flow from a different perspective, e.g.,
red away (negative velocities) and blue toward (positive
velocities). You can invert a real-time or frozen image.
NOTE: Invert reverses the color map, NOT the color PRF.
Changes the Color Flow or Doppler spectrum baseline to
accommodate higher velocity blood flow. Minimizes
aliasing by displaying a greater range of forward flow with
respect to reverse flow, or vice versa.
Baseline adjusts the alias point. The default baseline is at
the midpoint of the color display and at the midpoint of the
color bar reference display.
You can slant the ROI of the Color Flow linear image left
or right to get more information without moving the probe.
The Angle Steer function only applies to linear probes.
Accumulation enhances the flow in an image.
Available in Color Flow, PDI, and B Flow.
Optimizes the Color Flow frame rate or spatial resolution
for the best possible color image.
Allows you to select a specific color map. After you have
made your selection, the color bar displays the resultant
map.
Change the gradation of color map.
Threshold assigns the gray scale level at which color
information stops.
Averages color frames.
Brings out the tissue behind the color map.
Smooths out the color, makes it look less pixely.
Activates/deactivates Flash Suppression, a motion artifact
elimination process.
Controls the number of samples gathered for a single
color flow vector.
Adjusts the size of the color flow doppler transmit wave (or
pulse) and size (or length). Lower setting gives better flow
resolution and a higher setting increases sensitivity.
LOGIQ V5/LOGIQ V3
B S M
ASIC ERVICE ANUAL