Open-source toolkit for radiation therapy research, an extension of 3D Slicer. Features include DICOM-RT import/export, dose volume histogram, dose accumulation, external beam planning (TPS), structure comparison and morphology, isodose line/surface generation, etc.
SlicerRT user requested some update for DRR Image Computation module. See https://discourse.slicer.org/t/optimizing-resolution-and-spacing-parameters-in-plastimatch-drr/25873