User Manual Part 2

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2852 A EN 20070205
DRYSTAR AXYS
Quality control for mammography
application (DT 2 Mammo) (optional)
In order to establish and maintain consistent image quality, a regular evaluation
of the image quality is advised.
The Drystar AXYS contains an automatic QC procedure for general radiography
applications (refer to “Quality Control for general radiography applications
(DT 2 B & DT 2 C)” on page 87). If the option for the mammography application
is activated, another QC procedure is available for the mammography applica-
tion. This QC procedure has been designed to comply with the NEMA Standards
publication XR 23-2006. In this chapter we will discuss how to control the qual-
ity of mammography applications. This procedure is automatically selected
when there is Mammo media in the input tray.
Local Regulations may require other procedures.
The Drystar AXYS Hard Copy quality control procedures consist of two main
steps:
Q Before initial use, establishing a number of reference values that will be used
for further follow-up and verifying initial image quality.
Q Refer to “Establishing the daily operating reference density levels for mammog-
raphy application (DT 2 Mammo) (optional)” on page 108.
Q After establishing these values, performing regular daily, weekly and annual
quality tests.
Q Refer to “Performing quality control (QC) tests for mammography application
(DT 2 Mammo) (optional)” on page 115.
The results of these tests are recorded on Quality Control Charts.
The QC image (refer to the “QC test image for mammography applications
(DT 2 Mammo) (optional)” on page 107) has several additional fields where
the QC data can be filled in. This image should be filed as part of the QC proce-
dure.
For more information, please refer to “Quality Control Charts” on page 149.
Note: Repeat the two main steps of the Hard Copy quality procedures for
each input tray loaded with DT 2 Mammo films.