Table of Contents
GE
D
GB091046, R
IRECTION
4-3-3
M Mode Checks
4-3-3-1
Introduction
Figure 4-32 M-Mode Screen Example
4-3-3-2
Preparations
1.) Connect one of the probes, to the scanner's left-most probe connector.
-
2.) Turn ON the scanner.
The 2D Mode window is displayed (default mode).
3.) Press MM on the Operator panel to bring up an M-Mode picture on the screen.
4.) Use the trackball to position the cursor over the required area of the image.
4-3-3-3
Adjust the M Mode controls
These Image Controls are used to optimize the M mode picture. Verify that all the listed controls are
working as intended:
•
Adjust Horizontal sweep to optimize the display resolution.
•
Adjust Gain and TGC controls to adjust the range to be imaged.
•
Use the Frequency (move to higher frequencies) or the Frame rate control (move to lower frame
rate) to increase resolution in image.
•
Use the Frequency (move to lower frequency) to increase penetration.
•
Adjust Focus to move the focal point(s) around the region of interest in the M-Mode display.
•
Adjust Dynamic range to optimize the useful range of incoming echoes to the available grey scale.
•
Adjust Compress and Edge Enhance to further optimize the display.
•
Adjust Reject to reduce noise while taking care not to eliminate significant low-level diagnostic
information.
2
EVISION
See
3-5-6 "Connecting Probes" on page 3-21
Chapter 4 - General procedures and Functional checks
VIVID E9 / VIVID E7 BT'13 S
for info about connecting the probes.
M
ERVICE
ANUAL
4 - 35
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