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Introduction and Acknowledgements

This work is part of the SparKit project, funded by An Applied Cancer Research Unit of Cancer Care Ontario with funds provided by the Ministry of Health and Long-Term Care and the Ontario Consortium for Adaptive Interventions in Radiation Oncology (OCAIRO) to provide free, open-source toolset for radiotherapy and related image-guided interventions.
Author: Csaba Pinter (PerkLab, Queen's University)
Contributor: Greg Sharp (Massachusetts General Hospital)
Contact: Csaba Pinter, <email></email>
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Cancer Care Ontario  
Software Platform and Adaptive Radiotherapy Kit  
Ontario Consortium for Adaptive Interventions in Radiation Oncology  

Module Description

The DoseComparison module computes the difference between two co-registered dose volumes using the gamma dose distribution comparison method. This module uses the gamma Plastimatch algorithm internally.

Use Cases

Comparing dose distributions

Dose Comparison module UI
Example of the result gamma volume


See SlicerRT main page

Panels and their use

  • Current contour(s): Currently selected contour node (vtkMRMLContourNode) or conotur hierarchy node (vtkMRMLContourHierarchyNode)
  • Active representation: The active representation (Ribbon model / Indexed labelmap / Closed surface model) of the selected contour. If a hierarchy is selected in which the active representations of the contained contours do not match, Various is indicated
  • Change active representation: This box contains controls to convert from one representation to another

Similar Modules

Contour Comparison


  • Low, D. A.; Harms, W. B.; Mutic, S. & Purdy, J. A. A technique for the quantitative evaluation of dose distributions Med. Phys, 1998, 25 (5), 656/6
  • Low, D. A. & Dempsey, J. F. Evaluation of the gamma dose distribution comparison method Med. Phys, 2003, 30 (9), 2455/10

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