GE LOGIQ S8, Руководство по обслуживанию

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GE H
EALTHCARE
PROPRIETARY TO GE
D
IRECTION
5394227, 12 LOGIQ S8/LOGIQ E8 S
ERVICE
M
ANUAL
4 - 24 Section 4-4 - Functional Checks
4-4-6-2 Preparations
Use a phantom (optional) when doing these tests.
1.) Connect one of the probes, to the scanner’s active probe connector.
- see: 3-6-4 "Connecting Probes" on page 3-15 for info about connecting the probes.
- For available probes, see: Section 9-13 "Probes" on page 9-59 .
2.) Turn ON the scanner. The B-Mode window is displayed (default mode).
3.) If needed, adjust the Display’s Brightness and Contrast setting (see: Section 6-2 "Monitor
Adjustment" on page 6-2 ).
4-4-6-3 Checks
1.) Press
B-Mode
on the Operator Panel to access B-Mode.
2.) These Image Controls are used to optimize the B-Mode picture:
- Use
Gain
and
TGC
controls to optimize the overall image together with the
Power
control.
- Use
Depth
to adjust the range to be imaged.
- Use
Focus
to center the focal point(s) around the region of interest.
- Use
Frequency
(move to higher frequencies) or
Frame rate
(move to lower frame rate) to
increase resolution in image.
- Use
Frequency
(move to lower frequency) to increase penetration.
- Use the control to optimize imaging in the blood flow regions and make a cleaner, less noisy
image.
- Use
Reject
controls to reduce noise in the image.
• Check Width, Focus, Frame rate, Frequency
The results of these adjustments must be verified on the B-Mode sector on the screen.
• Check Rotation (Up/Down), Reverse (Left/Right), B Color Maps and Cineloop
The results of these adjustments must be verified on the B-Mode sector on the screen.
• Check Gain, TGC and Depth
• Check B-Mode Soft Menu Controls
• Check Compress, Contour, Reject and Tilt
• Check Acoustic output power and Dynamic Range
WARNING WARNING
ALWAYS USE THE MINIMUM POWER REQUIRED TO OBTAIN ACCEPTABLE IMAGES
IN ACCORDANCE WITH APPLICABLE GUIDELINES AND POLICIES.