RADIANT: A fully configurable radiotherapy dose prediction framework
Netherton, T. J.; Tchuindjang, J.; Celaya, A.; Gay, S.; Fuentes, D.; Court, L. E.
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In this work, we present the Radiotherapy Dose Inference and Analysis Toolkit (RADIANT), an open-source, fully configurable framework for 3D radiotherapy dose prediction. Built upon the Medical Imaging Segmentation Toolkit, RADIANT supports a wide range of network architectures, loss functions, and training strategies. We demonstrate its capabilities using a cervical cancer dataset generated with the Radiation Planning Assistant, consisting of 158 treatment plans. Dose prediction models were trained using five architectures - nnUNet, FMG-Net, W-Net, DDUNet, and Swin UNETR - and evaluated across clinical metrics such as dose score, homogeneity index, and percent errors in D95, D98, and D99. The best-performing model (MAE loss, nnUNet, polynomial scheduler) achieved the lowest average errors across all key dose metrics while also generalizing well to an independent test set. Our results indicate that RADIANT provides a scalable foundation for the rapid development and benchmarking of dose prediction models.
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