GE 5483518, Basic Service Manual

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Functional checks
LOGIQ e – Basic Service Manual 4-23
5461614-100 English Rev. 6
B Mode Softmenu Key
5 Activate Auto
Optimize Optimize the image based upon a specified
region of interest or anatomy. Press the Center
Button in the Gain Dial to toggle the ATO/ACE
On and Off.
7 Adjust Time Gain
Compensation
(TGC) Amplifies the returning signals to correct for
the attenuation caused by tissues at increasing
depth. TGC slide pots spaced proportional to
the depth. Move the slide pots to the left/right
to decrease/increase TGC. A TGC curve
appears on the display.
8 Adjust Scan Area Widen or narrow the size of the sector angle to
maximize the image’s region of interest (ROI).
Press Scan Area and move the Trackball to
narrow/widen the angle.
9 Adjust Zoom Changes the location of the focal point(s). A
triangular focus marker indicates the depth of
the focal point.
10 Reverse Toggles the left/right orientation of the scan
image.
Table 4-1: B Mode Operator Panel Controls
Step Task Expected Result(s) Comments
Table 4-2: B Mode Softmenu Key
Step Task Expected Result(s) Comments
1 Adjust Rejection Selects a level below which echoes will not be
amplified (an echo must have a certain
minimum amplitude before it will be
processed).
2 Activate Colorize Enables gray scale image colorization. To
deactivate, reselect a Gray Map.
3 Adjust Edge
Enhance Edge Enhance brings out subtle tissue
differences and boundaries by enhancing the
gray scale differences corresponding to the
edges of structures. Adjustments to M Mode's
edge enhancement affects the M Mode only.
4 Activate Gray Map Determines how the echo intensity levels
received are presented as shades of gray.
5 Adjust Frequency Multi Frequency mode lets you downshift to the
probe's next lower frequency or shift up to a
higher frequency.