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Specification for testing of quality control in medical digital radiography(DR)systems
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Basic data
| Standard ID | WS 521-2017 (WS521-2017) |
| Description (Translated English) | Specification for testing of quality control in medical digital radiography(DR)systems |
| Sector / Industry | Health Industry Standard |
| Classification of Chinese Standard | C57 |
| Classification of International Standard | 13.280 |
| Word Count Estimation | 15,147 |
| Date of Issue | 2017-04-10 |
| Date of Implementation | 2017-10-01 |
| Quoted Standard | WS 76 |
| Issuing agency(ies) | National Health and Family Planning Commission of the People's Republic of China |
| Summary | This standard specifies the medical digital X-ray photography (DR) system quality control testing requirements, testing items and methods. This standard is applicable to the quality control of medical digital X-ray photography (DR) systems, including DR systems using linear array or array scan image detectors. This standard does not apply to the quality control of mammography digital mammography (mammography), dental digital X-ray photography, digital dual-photogrammetry, and digital tomography photography. |
WS 521-2017: Specification for testing of quality control in medical digital radiography(DR)systems
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Specification for testing of quality control in medical digital radiography (DR) systems
ICS 13.280
C57
People's Republic of China health industry standards
Medical digital radiography (DR) system quality
Control test specification
inmedicaldigitalradiography (DR) systems
2017-04-10 released
2017-10-01 implementation
People's Republic of China National Health and Family Planning Commission released
Directory
Foreword Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 quality control testing of the general requirements 2
5 quality control test items and technical requirements 2
6 special test items detection methods and evaluation 3
Appendix A (normative) quality control test items and technical requirements 7
Appendix B (Informative) Six low-contrast details of the test body example 9
Appendix C (informative) DR system-specific testing equipment needed items and appliances 11
Reference 12
Foreword
This standard Chapter 4, 5.1 ~ 5.4,5.7,5.8 and Appendix A is mandatory, the rest is recommended.
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was drafted. Chinese Center for Disease Control and Prevention Radiation Protection and Nuclear Safety Medical Center, Capital Medical University, Beijing Tongren Medical
Hospital, Beijing Center for Disease Control and Prevention.
The main drafters of this standard. Wei Ke Road, Yue Bao Rong, Wang Jianchao, Xu Hui, Fan Yaohua, Niu Yan Tao, Liu Lan Tao, Lou Yun, Liao Jinghui.
Medical digital radiography (DR) system quality
Control test specification
1 Scope
This standard specifies the medical digital X-ray photography (DR) system quality control testing requirements, testing items and methods.
This standard applies to medical digital X-ray photography (DR) system quality control testing, including the use of linear array or area array scanning image exploration
DR system of the detector.
This standard does not apply to breast digital radiography (breast DR), dental digital radiography, digital dual-energy photography and digital body layer
Synthetic photography quality control testing.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
WS 76 medical routine X-ray diagnostic equipment quality control testing specifications
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Medical digital radiography system medicaldigitalradiographysystem
A medical imaging device that realizes X-ray photography using digital X-ray image detector technology. Its image is directly from the image
The detector is read out and usually consists of an X-ray generator, a digital X-ray imaging device and a mechanical aid. Referred to as digital X-ray
Photography (digital radiography, DR).
3.2
Signal transfer characteristics signaltransferproperty; STP
The average pixel value measured in the center of the image plane of the detector of the DR system and the incident air absorbed by the image detector
A description of the interrelationship between kinetic energy. There are different correlations between the image detectors of different production plants, such as linearity,
Logarithmic or square root relationship.
3.3
Exposure index exposureindex
A parameter quantity used to indicate the DR system's dose performance.
3.4
Detector dose indicator
A method used to establish and display the image exposure index.
3.5
ROI
Pixel regions (circles or rectangles) delimited in the image. Using software tools to provide the average pixel value of the region and standard deviation.
...
