GE FC091194, Руководство по обслуживанию

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GE M
EDICAL
S
YSTEMS
D
IRECTION
FC091194, R
EVISION
02 V
IVID
7 / V
IVID
7 PRO S
ERVICE
M
ANUAL
4 - 32 Section 4-3 - Functional Checks
4-3-6-8 Check Frequency, Radial Averaging, Lateral Averaging, Power
10. Select Color Maps
Displays a menu of color map options.
Use the trackball to point to a color map and press
SELECT
to activate the desired color map.
Each color map is assigning different color hues to
different velocities.
11. Make Cineloop (in Freeze, Color 2D mode only)
Starts cine loop acquisition.
Table 4-17 Color-Mode Soft Menu Controls Check
Step Task Expected Result(s)
1. Adjust Frequency
Enables the adjustment of the transmission frequency to
control the sensitivity or the level of penetration.
The selected frequency is displayed in the status
window.
Adjusting Frequency may affect Sample Volume and
LVR settings.
2. Adjust Radial Averaging
Smooths the image by averaging collected data along
the same radial line.
An increase of the radial averaging will reduce noise, but
this will also reduce the radial resolution.
3. Adjust Lateral Averaging (Color 2D only)
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.
Table 4-16 Color Flow Mode: Check Variance, Color Maps and Cineloop
Step Task Expected Result(s)