The development of the International Classification of CT for Pneumoconioses---in accordance with revision of ILO 1980 system

本项目的目标：本项目是在德国、芬兰、日本等国独立开发的尘肺CT国际分类的基础上，开发尘肺CT国际分类。在德国、芬兰和日本研究人员的倡议下，该项目开始于教育、文化、体育、科学和技术部的资助，日本，目的是制定国际肺尘埃沉病CT分类。在这个项目的第一年，我们邀请了一位法国研究人员，他开发了自己的分类系统，比利时研究人员对这个主题感兴趣。所有的合作研究人员基本上同意的成像参数和需要制定分类的HRCT是指定用于临床诊断，筛选和监测石棉相关的肺部疾病。在此基础上，我们在2000年6月的尼科会议上充分拟订了分类候选方案。我们已经收集了代表石棉肺纤维化表现的HRCT片样本，这些纤维化表现在建议的表格上。我们决定通过测试多个读数器的良好一致性来提取标准胶片。在多特蒙德会议上，通过试读阅读对开发的分类系统进行了评估。在多特蒙德会议上，通过试读阅读提取的标准片得到了保证，石棉相关疾病CT国际分类的整个主体几乎准备好出版。然而，没有理由将新制定的分类的主题仅限于与石棉有关的肺部疾病。我们同意扩大CT分类，不仅包括一般的尘肺病，还包括职业和环境呼吸系统疾病（OERD）。

Objective of this project : This project is to develop International Classification of CT for Pneumoconioses based on the existing classifications that were developed by German, Finnish and Japanese researchers independently.Background and achievement of the project : With the initiative of German, Finnish and Japanese researchers this project started with the Grant in Aid from Ministry of Education, Culture, Sports, Science and Technology, Japan for the purpose of developing the International Classification of CT for Pneumoconioses.In the first year of this project, we invited a French researcher who has developed his own classification system, and Belgian researchers who are interested in the subject. All the collaborating researchers basically agreed on the imaging parameters and the need to develop classification for the HRCT that is designated for the purpose of clinical diagnosis, screening and surveillance for asbestos-related lung diseases. On that basis, we have fully developed the classification candidate at the Nikko meeting in June 2000. We have collected sample HRCT films that represent the each fibrotic finding for asbestosis described on the proposed sheet. We decided to extract the standard films by testing the good agreement by multiple readers. The developed classification system was assessed by trial reading that was performed by the time of Dortmund meeting.At the Dortmund meeting, the standard films extracted by the trial reading were assured and the whole body of the International Classification of CT for Asbestos-related Diseases was almost ready to be published. However, there is no reason to restrict the subjects of newly developed classification only to the asbestos-related lung diseases. We agreed to expand the CT classification for no only Pneumoconioses in general, but also Occupational and Environmental Respiratory Diseases(OERD).