CANDID-PTX

19,237 anonymized adult chest x-ray datasets in 1024 x 1024 pixel DICOM format with corresponding anonymized free-text reports from Dunedin Hospital, New Zealand between 2010 - 2020. Images were manually annotated by RANZCR radiology trainee and radiologists with respect to pneumothorax, acute rib fracture, and chest tubes. Segmentation annotations were converted to run-length-coded (RLE) format in csv files. In the provided metadata, image filenames contain patient index (enabling analysis requiring patient grouping of images), as well as anonymized date of acquisition information where the temporal relationship between images is preserved.Unfortunately, since Feb 2024, the New Zealand government is changing the data governance on datasets used for AI development and this affects the process of how the CANDID PTX dataset is to be accessed by the external users. Therefore, the CANDID PTX dataset is not available for access by users outside Health New Zealand. Further notice of access will be updated here should access by external users be reopened.

共计19237份经匿名化处理的成人胸部X射线数据集，分辨率为1024×1024像素，格式为DICOM（Digital Imaging and Communications in Medicine），配套来自新西兰达尼丁医院（Dunedin Hospital）2010年至2020年间采集的匿名化自由文本诊断报告。所有影像均由RANZCR（Royal Australian and New Zealand College of Radiologists，澳大利亚新西兰皇家放射科医师学院）的放射科规培医师及放射科医师，针对气胸（pneumothorax）、急性肋骨骨折（acute rib fracture）及胸腔引流管（chest tubes）开展人工标注。分割标注已转换为CSV文件中的游程编码（Run-Length Encoding, RLE）格式。在本次提供的元数据中，影像文件名包含患者索引（可支持需按患者对影像进行分组的分析），同时保留了可体现影像间时间关联关系的匿名化采集日期信息。遗憾的是，自2024年2月起，新西兰政府正在修订用于人工智能开发的数据集数据治理规范，这将影响外部用户获取CANDID PTX数据集的流程。因此，目前Health New Zealand（新西兰健康部）以外的用户无法访问该CANDID PTX数据集。若后续开放外部用户访问权限，相关访问通知将在此更新。