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3.11 Ghost Image Evaluation
4
Remove the RMI-156 phantom and replace it with the 2cm of PMMA (acrylic) phantom.
5
Register the cassette under the Erase 2 exam tag.
6
Expose the cassette using 28kVp 40mAs.
7
Process the cassette and view the acquired image.
3.11.5 Performance Criteria and Corrective Action
Performance Criteria: The Erase 2 image should be free of any visible indication of the RMI phantom from the previ-
ous exposure.
Corrective Action: If a latent image is detected the REGIUS system will need to have service to address the issue.
The source of the problem shall be identied and corrective action shall be taken before further patient imaging is
performed.
3.11.6 Documentation
• Record the results in the Table MP-8 (Ghost Image Evaluation) and the Table MP-S (MEDICAL PHYSICIST'S
MAMMOGRAPHY QC TEST SUMMARY).
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