Back to Basics 5500 Guide de l'utilisateur Page 180

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Imaging Modalities
Color Imaging
7-64 Revision D.0
Frequency Fusion Optimizes frequencies for penetration, texture or
resolution. Changes are reflected in the Frequency
Fusion icon.
Gain Adjusts system sensitivity to received color flow
signals. Increasing the color gain percentage increases
the amount of color displayed.
Magnify Increases or decreases the magnification factor of an
image in Zoom or Zoom Preview modes.
Pan When Zoom is on (fully highlighted), enables the
trackball to move the zoom/color box area over the
image.
Scale Changes the range of color flow velocities. Lower the
scale to see slow flow, and increase it to see higher
velocities.
Secondary
Controls
Switches between the primary and secondary touch
panels. When the control is highlighted, the secondary
controls are active.
Spectral Reformats the screen display to turn a Doppler spectral
trace on or off.
Sweep Changes the sweep speed of the ECG waveform.
Available speeds are 25, 50, 100, and 150 mm/sec.
Tissue Doppler Turns Tissue Doppler imaging mode on or off. Not
available when the image has been frozen using the
key.
Zoom
Turns zoom (magnification) on or off. To move the
zoom preview area, use the trackball ( is active
when you first enter zoom preview). To resize the zoom
preview area, press and use the trackball. Then
touch Zoom again to enter full zoom mode.
Freeze
Tip: When activated,
Zoom is first outlined
by a box. This
indicates zoom
preview. Touch Zoom
a second time to go
into full zoom.
Position
Size
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