User Manual

141
2900H EN 20071108 Advanced operation (Key-operator mode)
DRYSTAR 5500/5503 REFERENCE MANUAL
Quality control for general radiography
applications (DT 2 B & DT 2 C)
In order to establish and maintain consistent image quality, a regular
evaluation of the image quality is advised.
The Drystar 5500 contains an automatic QC procedure for general
radiography applications and has been designed to comply with the grayscale
reproduction constancy test, according to the international standard IEC
1223-2-4. If the option for the mammography application is activated,
another QC procedure is available for the mammography application (refer to
‘Quality control for mammography application (DT 2 Mammo) (optional)’ on
page 153). This QC procedure has been designed to comply with the
Mammography Quality Standards Act (MQSA) of the FDA (refer to ‘Safety
compliance’ on page 18). In this chapter we will discuss how to control the
quality of general radiography applications.
Local Regulations may require other procedures.
The Drystar 5500 Hard Copy quality control procedures consist of two main
steps:
• Before initial use, establishing a number of reference values that will be
used for further follow-up and verifying initial image quality.
• After establishing these values, performing regular daily, weekly and
annual quality tests.
The results of these tests are recorded on Quality Control Charts.
The QC image (Refer to the ‘QC general radiography test image’ on page 146)
has several additional fields where the QC data can be filled in. This image
should be filed as part of the QC procedure.
For more information, please refer to ‘Quality Control Charts’ on page 241.
Repeat the two main steps of the Hard Copy quality procedures for each input tray
loaded with DT 2 B and/or DT 2 C films.