BS EN 61223-3-3:1997

INTRODUCTION
1 Scope and object
    1.1 Scope
    1.2 Object
2 Normative references
3 Terminology
    3.1 Degree of requirements
    3.2 Use of terms
    3.3 Defined terms
4 General aspects of acceptance tests
    4.1 General conditions to be considered in test
          procedures
    4.2 Documents and data for the tests
    4.3 Test conditions
    4.4 Test parameters
    4.5 Test equipment including phantoms and test devices
    4.6 Evaluating the test results
5 Test methods for x-ray equipment for DSA
    5.1 Identification
    5.2 Check of documents
    5.3 Decision on representative DSA operation modes
    5.4 Visual and functional tests
    5.5 Air kerma measurements
    5.6 Dynamic range
    5.7 DSA contrast sensitivity
    5.8 DSA visual spatial resolution
    5.9 Artifacts
    5.10 Compensation for attenuation non-linearity
          (optional)
6 Test report and statement of compliance
Annexes
A Terminology - Index of defined terms
B Example of a DSA phantom without test step for
    compensation
C Example of a DSA phantom with test step for compensation
ZA (normative) Normative references to international
    publications with their corresponding European
    publications

Applicable to those components of x-ray equipment which influence the image quality of equipment for digital subtraction angiography using an imaging system consisting of an x-ray generation subsystem, a detection device consisting of an x-ray image intensifier television chain, means of digitization and a digital image processing, image storage and image manipulation including subtraction, and facilities for image display. ALSO NUMBERED AS BS 7725 SECTION 3.3 1997

1.1 Scope This part of IEC1223 applies to those components of X-ray equipmentwhich influence the image quality ofequipmentfor digital subtraction angiography (DSA) with an imaging system consisting of an X-raygeneration subsystem, a detection device comprising an X-ray image intensifiertelevision chain, means of digitization and digital image processing, image storage and image manipulation including subtraction, and facilities for image display. This standard does not apply to general equipment of digital imaging. If such an equipment includes a DSA function, it is restricted to the DSA function. 1.2 Object This part of IEC1223 defines: the essential parameters which describe the performance of the above-mentioned components of X-ray equipmentwith regard to imaging properties; methods of testing whether measured quantities related to those parameters comply with specified tolerances. These methods mainly rely on non-invasive measurements using appropriate test equipment performed during the installation or after the installation is completed. Signed statements covering steps in the installation procedure can be used as part of acceptance testing. The aim is to verify compliance of the installation with specifications affecting the image quality, and to detect malfunctions affecting the image quality that are not in agreement with those specifications. This standard does not in itself specify tolerances for the parameters under investigation. Neither is it intended to consider: aspects of mechanical and electrical safety; aspects of mechanical, electrical and software performance unless they are essential to the performance of the tests directly affecting the image quality.