Quality - Siemens MAMMOMAT Novation Maintenance Instructions Manual

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6.3

Quality

Proceed with the test according to the Quality Control Manual.
Q Monitor check and viewing conditions
•
Perform the check according to the Quality Control Manual, chapter "Monitor check and
viewing conditions", to assess the quality of the acquisition workstation monitor.
Q Printer check
•
Perform this check according to the Quality Control Manual, chapter "Printer check", to
assess the quality of the printer.
QIQ Phantom image quality check
•
Perform the image quality check according to the Quality Control Manual, chapter
"Phantom image quality".
X
QIQ Detector uniformity
•
Perform the image quality check according to the Quality Control Manual, chapter "De-
tector uniformity", to ensure that the pixel values of the detector do not deviate more
than 5% from each other.
X
QIQ Beam quality (HVL)
•
Perform the image quality check according to the Quality Control Manual, chapter
"Beam quality", to optimize the dose calculation
X
QIQ AEC image stability, repro and signal-to-noise (SNR)
•
Perform the check according to the Quality Control Manual, chapter "AEC image stabili-
ty, repro and signal-to-noise (SNR)", to assure, that the coefficient of variation for the
entrance dose and mAs is less than 0.05 and the SNR does not vary more than ± 15%
from the mean value.
X
QIQ Ghost image evaluation
•
Perform the check according to the Quality Control Manual, chapter "Ghost image eval-
uation", to ensure that the ghosting is within an acceptable level.
X
MAMMOMAT Novation SPB7-250.831.01.02.02
08.04
Miscellaneous
Page 30 of 32
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