医療用ディスプレイ装置におけるQAQC適正化の検討

  • 市川 勝弘
    名古屋大学医学部保健学科(現 金沢大学医薬保健研究域保健学系)
  • 江本 豊
    藤田保健衛生大学放射線医学教室(現 京都医療科学大学医療科学部)
  • 奥田 保男
    岡崎市民病院情報管理室
  • 小山 智美
    聖路加国際病院放射線科
  • 西 嘉一
    東京特殊電線株式会社R&Dセンター(現 長野県工科短期大学校電子技術科)
  • 西出 裕子
    福井県立病院放射線室
  • 橋本 憲幸
    株式会社ナナオ映像商品開発部
  • 船橋 正夫
    大阪府立急性期総合医療センター医療技術部

書誌事項

タイトル別名
  • Investigation of Practical Method for Quality Assurance and Control of Medical Displays
  • イリョウヨウ ディスプレイ ソウチ ニ オケル QAQC テキセイカ ノ ケントウ

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抄録

Quality assurance (QA) guidelines for medical display systems in Japan, JESRA X-0093, were published in August 2005 and have been used in many medical fields to maintain image quality on medical displays. This report offers detailed explanations of terms and testing methodologies in the guidelines, taking into account users with little knowledge of display technology. The management grade classifications, luminance meters, test patterns, and evaluation methods for executing the QA are supplementally described based on the technical background of related things. In addition, the validity of the evaluation methods and judgment criteria for uniformity and contrast response tests were examined in some experiments. The experimental results of the contrast response indicated that some cases presented inadequate display contrast even if the contrast responses were set within ±15% of the standard acceptable range for grade 1. The luminance responses of displays used in two computed tomography systems (CTs) and one magnetic resonance imaging system (MRI) were also measured, and the results indicated that their responses with conventional gamma responses were problematic for comparing images with those of medical displays.

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