Dataset for multicenter comparison of measures for quantitative evaluation of contouring in radiotherapy

This dataset was created to perform a comparison of tools used for the assessment of contouring between different institutions. A survey was conducted between institutions using this dataset, the results of which will be published separately. The dataset consists of two CT images with "test" and "reference" RTSS, for which participants were asked to submit the values for the contouring measures they used. Ground truth measurements are not provided. The first study consists of a synthetic image with synthetic shapes. The second study is based on one case from the AAPM 2017 Thoracic Auto‐Segmentation Challenge dataset, case LTCSC-Test-S1-201, for which an additional "test" contour has been added.