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Chapter 3
3.7 View Boxes and Viewing Conditions (Medical Physicist)
3.7.1 Test Objective
To follow the guidance given in the "Mammography Quality Control Manual" (ACR, 1999) Medical Physicist section
procedure 11.
3.7.2 Frequency
• Initially before interpreting mammograms
• ANNUALLY
• Whenever a problem related to the viewing condition is suspected
3.7.3 Required Equipment
• Photometer
• Luminance meter
Follow the guidance given in the "Mammography Quality Control Manual" (ACR, 1999) Medical Physicist section pro-
cedure 11.
3.7.4 Procedure
Follow the guidance given in the "Mammography Quality Control Manual" (ACR, 1999) Medical Physicist section pro-
cedure 11.
Set the nal interpretation environment illumination to the lower of (a) that recommended in the monitor manufac-
turer's QC manual, or (b) 20 lux or lower.
3.7.5 Performance Criteria and Corrective Action
Performance Criteria: Follow the guidance given in the "Mammography Quality Control Manual" (ACR, 1999) Medi-
cal Physicist section procedure 11.
Corrective Action: If the illumination is greater than the criterion, the source of the problem must be identied and
corrective action taken. Follow the guidance given in the "Mammography Quality Control Manual" (ACR, 1999) Medi-
cal Physicist section procedure 11.
The Corrective action shall be taken before further mammographic image interpretation is performed under these
conditions. Patient imaging may be continued.
3.7.6 Documentation
Record this activity in the Table MP-S (MEDICAL PHYSICIST'S MAMMOGRAPHY QC TEST SUMMARY) or use the
worksheets and forms referenced in the "Mammography Quality Control Manual" (ACR, 1999) Medical Physicist sec-
tion procedure 11.
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