GE LOGIQ 200 Quality Assurance Manual page 31

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GE Medical Systems
Probe 3 (cont'd):
Contrast Resolution.
the phantom contrast targets in the current scan. The point is not how any ONE of the targets look
but how well defined they are from each other, and from the background material.
Record the following information for five of the contrast targets, if available in the phantom. If they
are not available, indicate with N/A:
Object Number
Object Depth
Object Size
Object Contrast *
Object Detectability
Complete
Partial
Not Seen
Changed for Worse Y/N
Overall Probe Low Contarst Detectability
Change
Notes for contrast resolution:
Object Depth - is from the skin line to the center of the object.
Object Size - is the overalldiameter of the object (all should be the same)
Object Contrast -
Object Detectability - Check one box according to your evaluation of the object.
Changed for Worse Y/N - Enter a Y (yes) or N (no).
Document any system setting changes if they are different than the original scan on page 6.
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(OPTIONAL) QA Reference Manual Section 4-2 Step 6 & 7.
1 2
NO NO
No Change (or First Test)
Use the Echo Level function by Freezing the image. Press the Measurement
key three (3) times to assess the gray scale contrast level.
A 3 cm square box appears in the image area.
Position the box in the center of the contrast object.
Press Set.
Record the resulting number as the Object Contrast in the chart above.
2267008-100
3/4
3 4
NO NO
REV 0
Evaluate
5
NO