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

本项目的目标是在德国、芬兰和日本研究人员独立开发的现有分类的基础上，开发尘肺CT国际分类。项目背景和成果：在德国、芬兰和日本研究人员的倡议下，本项目由日本文部科学省的助学金启动，目的是开发国际尘肺CT分类。在本项目的第一年，我们邀请了一位已经制定了自己的分类系统的法国研究人员和对该课题感兴趣的比利时研究人员。所有合作的研究人员基本上就成像参数和制定HRCT分类的必要性达成一致，该分类被指定用于石棉相关肺部疾病的临床诊断、筛查和监测。在此基础上，我们在2000年6月的日兴会议上充分制定了分类候选方案。我们收集了样本HRCT片，代表了建议的表格中描述的石棉肺的每一种纤维化发现。我们决定通过测试多个读者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，通过试读提取的标准胶片得到了保证，石棉相关疾病的国际CT分类正文几乎准备好出版。然而，没有理由将新开发的分类对象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).