Chapter 7 Brivo Xr118 System Check; Image Quality Test; Image Artifact Check (Optional); Uniformity Check - GE Healthcare Brivo XR118 Service Manual

GE H
EALTHCARE
D 5461425-8EN, R
IRECTION
Chapter 7 - Brivo XR118 System Check
Section 1.0

Image Quality Test

1.) Go to SUIF according to the instruction described above. Then press the "Image Quality"
2.) Then press "Image control tools" to do the QAP. There will be the detail instruction on the
3.) Wait until the test result displayed.
Section 2.0

Image Artifact Check (Optional)

Please follow below steps to check if there any image artifact may impact clinical diagnostics.
1.) Set exposure mode and technique as: Digital cassette receptor; SF; 80kV; 100mA; Detector
2.) Set exposure time to 5ms, and take exposure. After exposure is done, view Raw Image to
3.) Set exposure time to 32ms, and take exposure. After exposure is done, view Raw Image to
4.) Set exposure time to 80ms, and take exposure. After exposure is done, view Raw Image to
Section 3.0

Uniformity Check

1.) Set exposure techniques as: SID 150cm; 100kV; 1mAs.
2.) Take exposure 5 times for each exposure mode (Detector under the table and above the
3.) After exposures done, view Raw Image with cobb tool at same location to compare the
4.) Set exposure techniques as: SID 150cm; 80kV; 3.2mAs.
5.) Take exposure 5 times for each exposure mode (Detector under the table and above the
6.) After exposures done, view Raw Image with cobb tool at same location to compare the
6
EVISION
button on the SUIF.
screen for each step. The system will tell operator the pass or failed.
Make sure all the items pass the test.
position, SID and FOV same as Digital cassette calibration setup.
adjust contrast to 98% and set brightness to visible level. Zoom the image to 1, pan cross the
whole image to observe the image to make sure there is not any visible artifact.
adjust contrast to 98% and set brightness to visible level. Zoom the image to 1, pan cross the
whole image to observe the image to make sure there is not any visible artifact.
adjust contrast to 98% and set brightness to visible level. Zoom the image to 1, pan cross the
whole image to observe the image to make sure there is not any visible artifact.
This can be passed if detector calibration is OK. Otherwise, it needs to redo detector
calibration or mark the bad line.
If the image quality is not good, then follow the below steps to check if there any uniformity
issue caused by the table top or wall stand front panel.
table).
average value.
table).
average value.
Chapter 7 - - Brivo XR118 System Check
B XR118 S M
RIVO ERVICE ANUAL
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