EN 61223-3-5:2004

FOREWORD
INTRODUCTION
1 Scope and object
2 Normative references
3 Terms and definitions
4 General aspects of ACCEPTANCE TESTS
5 Test methods for CT SCANNERS
Annex A (normative) - Terminology - Index of defined terms
Annex B (informative) - Recommended criteria for test results
Annex C (informative) - Visual Method for LOW CONTRAST RESOLUTION
Annex D (informative) - Accuracy of the gantry tilt
Annex E (informative) - DOSE PROFILE
Annex F (informative) - Alternate test methods for
        SPATIAL RESOLUTION
Annex G (informative) - TOMOGRAPHIC SECTION
        THICKNESS for helical scanning
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

This standard - defines the essential parameters which describe the performance of the CT scanners with regard to image quality, patient dose and positioning; - defines the methods of testing the essential parameters; - evaluates compliance with the tolerances of the parameters specified by the accompanying documents. These methods rely mainly on non-invasive measurements, using appropriate test equipment, performed during the installation or after it has been completed. Signed statements covering steps in the installation procedure may be used as part of the acceptance test report. This part of EN 61223 is intended to assist in performing the acceptance tests on a CT scanner. The aim is to verify compliance of the installation with specifications affecting the image quality, patient dose and positioning.