BS EN 62220-1:2004
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Medical electrical equipment. Characteristics of digital X-ray imaging devices Determination of the detective quantum efficiency
Hardcopy , PDF
17-07-2018
English
02-02-2004
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INTRODUCTION
1 Scope
2 Normative references
3 Terminology and definitions
4 Requirements
4.1 Operating conditions
4.2 X-RAY EQUIPMENT
4.3 RADIATION QUALITY
4.4 TEST DEVICE
4.5 Geometry
4.6 IRRADIATION conditions
4.6.1 General conditions
4.6.2 Exposure measurement
4.6.3 Avoidance of LAG EFFECTS
4.6.4 IRRADIATION to obtain the CONVERSION FUNCTION
4.6.5 IRRADIATION for determination of the NOISE POWER
SPECTRUM
4.6.6 IRRADIATION with TEST DEVICE in the RADIATION BEAM
5 Corrections of RAW DATA
6 Determination of the DETECTIVE QUANTUM EFFICIENCY
6.1 Definition and formula of DQE(u,v)
6.2 Parameters to be used for evaluation
6.3 Determination of different parameters from the images
6.3.1 Linearization of data
6.3.2 The NOISE POWER SPECTRUM (NPS)
6.3.3 Determination of the MODULATION TRANSFER FUNCTION
(MTF)
7 Format of conformance statement
8 Accuracy
Annex A (normative) Determination of LAG EFFECTS
A.1 Test of additive LAG EFFECTS
A.2 Test of multiplicative LAG EFFECTS
Annex B (normative) Terminology - Index of defined terms
Annex C (informative) Calculation of the input NOISE POWER
SPECTRUM
Annex ZA (normative) Normative references to international
publications with their corresponding
European publications
Bibliography
Describes the method for the determination of the detective quantum efficiency (DQE) of digital X-ray imaging devices as a function of exposure and of spatial frequency for the working conditions in the range of the medical application as specified by the manufacturer.
| Committee |
CH/62/2
|
| DevelopmentNote |
Supersedes 02/563814 DC (02/2004) Superseded by BS EN 62220-1-1, but remains current and will be withdrawn on 16/04/2018. (07/2015)
|
| DocumentType |
Standard
|
| Pages |
32
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| SupersededBy | |
| Supersedes |
Specifies the method for the determination of the detective quantum efficiency (DQE) of digital X-ray imaging devices as a function of exposure and of spatial frequency for the working conditions in the range of the medical application as specified by the manufacturer. Is applicable to projection digital X-ray imaging devices producing images in digital format that are used for medical diagnosis. It is restricted to digital X-ray imaging devices that are used for radiographic imaging, such as CR systems, selenium-based systems, flat panel detectors, optically coupled CCD detectors, and digital X-ray image intensifiers used for single exposures.
| Standards | Relationship |
| I.S. EN 62220-1:2004 | Identical |
| UNE-EN 62220-1:2004 | Identical |
| DIN EN 62220-1:2005-01 | Identical |
| IEC 62220-1:2003 | Identical |
| EN 62220-1:2004 | Identical |
| NBN EN 62220-1 : 2005 | Identical |
| NF EN 62220-1 : 2005 | Identical |
| ISO 12232:2006 | Photography Digital still cameras Determination of exposure index, ISO speed ratings, standard output sensitivity, and recommended exposure index |
| IEC 60601-2-7:1998 | Medical electrical equipment - Part 2-7: Particular requirements for the safety of high-voltage generators of diagnostic X-ray generators |
| IEC 60336:2005 | Medical electrical equipment - X-ray tube assemblies for medical diagnosis - Characteristics of focal spots |
| EN 60601-2-7:1998 | Medical electrical equipment - Part 2-7: Particular requirements for the safety of high-voltage generators of diagnostic X-ray generators |
| ISO 15529:2010 | Optics and photonics Optical transfer function Principles of measurement of modulation transfer function (MTF) of sampled imaging systems |
| EN 61267:2006 | Medical diagnostic X-ray equipment - Radiation conditions for use in the determination of characteristics |
| IEC TR 60788:2004 | Medical electrical equipment - Glossary of defined terms |
| ISO 12233:2017 | Photography — Electronic still picture imaging — Resolution and spatial frequency responses |
| EN 60336:2005 | Medical electrical equipment - X-ray tube assemblies for medical diagnosis - Characteristics of focal spots |
| IEC 61262-5:1994 | Medical electrical equipment - Characteristics of electro-optical X-ray image intensifiers - Part 5: Determination of the detective quantum efficiency |
| HD 501 : 200S1 | MEDICAL RADIOLOGY - TERMINOLOGY |
| IEC 61267:2005 | Medical diagnostic X-ray equipment - Radiation conditions for use in the determination of characteristics |
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