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For the latest Slicer documentation, visit the read-the-docs.

Introduction and Acknowledgements

Authors: Csaba Pinter (PerkLab, Queen's University), Andras Lasso (PerkLab, Queen's University), Kevin Wang (Radiation Medicine Program, Princess Margaret Hospital, University Health Network Toronto)
Contact: Andras Lasso,
License: Slicer license

Extension Description

SlicerRT is one of the themes of the SparKit (Software Platform and Adaptive Radiotherapy Kit) project with the goal of making 3D Slicer a powerful radiotherapy research platform. SparKit is a project funded by Cancer Care Ontarioand the Ontario Consortium for Adaptive Interventions in Radiation Oncology (OCAIRO) to provide free, open-source toolset for radiotherapy and related image-guided interventions.


  • DICOM-RT import
  • Dose volume histogram
  • Dose accumulation

Use Cases

  • Comparison of dose maps and dose volume histograms from various treatment planning systems
  • Evaluation the effect of image-based non-rigid patient motion compensation
  • Dose accumulation with motion compensation
Dose volume histogram computation using SlicerRT


Similar Extensions

  • Plastimatch: SlicerRT and Plastimatch are complementary software libraries. Plastimatch focuses on delivering new computational methods radiotherapy, while SlicerRT aims for providing an easy-to-use interface for a wide range of stable, well-tested radiotherapy related features. SlicerRT uses Plastimatch internally for certain operations.


Information for Developers