Entz Kathrin, Sommer Alexander, Lenzen Horst
Reference Center Mammography, University Hospital Muenster, Muenster, Germany.
Department of Clinical Radiology, University Hospital Muenster, Muenster, Germany.
Rofo. 2018 Jan;190(1):51-60. doi: 10.1055/s-0043-110862. Epub 2017 Dec 19.
Acceptance and regular constancy tests are necessary to ensure the quality of diagnostic displays. In November 2014, a new standard (DIN 6868-157) was published which defines the test procedure and limiting values. There are several substantial changes compared with the previous standard DIN V 6868-57, i. e. considering the complete image display system including workstation and application software instead of only the displays. Since its publication, the new standard has raised many questions. This technical review aims to show the strengths and weaknesses of the new standard. Positive aspects are the introduction of a limiting value for the illuminance and the extension of the interval for constancy tests from 3 to 6 six months. The daily constancy test on the other hand, raises several problems and should be replaced by a randomized test. Additionally, the medical relevance is critically questioned and an overview of software for the quality assurance will be given.
· Acceptance and constancy tests for diagnostic displays are defined in DIN 6868-157.. · The new standards has positive and negative aspects.. · Randomized tests should be introduced..
· Entz K, Sommer A, Lenzen H. DIN 6868-157: Image Quality Assurance in Diagnostic X-ray Departments - X-ray Ordinance Acceptance and Constancy Test of Image Display Systems in their Environment - Technical Review -. Fortschr Röntgenstr 2018; 190: 51 - 60.
验收测试和定期稳定性测试对于确保诊断显示器的质量至关重要。2014年11月，发布了一项新标准（DIN 6868 - 157），该标准定义了测试程序和极限值。与先前的标准DIN V 6868 - 57相比，有几个重大变化，即考虑整个图像显示系统，包括工作站和应用软件，而不仅仅是显示器。自发布以来，新标准引发了许多问题。本技术综述旨在展示新标准的优点和缺点。积极方面包括引入了照度极限值以及将稳定性测试的时间间隔从3个月延长到6个月。另一方面，每日稳定性测试引发了几个问题，应该用随机测试来取代。此外，其医学相关性受到严重质疑，并将给出质量保证软件的概述。
· 诊断显示器的验收测试和稳定性测试在DIN 6868 - 157中定义。· 新标准有积极和消极方面。· 应该引入随机测试。
· Entz K, Sommer A, Lenzen H. DIN 6868-157: Image Quality Assurance in Diagnostic X-ray Departments - X-ray Ordinance Acceptance and Constancy Test of Image Display Systems in their Environment - Technical Review -. Fortschr Röntgenstr 2018; 190: 51 - 60.
