This project provides a framework for 2D/3D registration using Digitally Reconstructed Topogram (DRT) images, which are generated from 3D CT volumes using a modified version of the Siddon-Jacobs ray casting algorithm.

In addition to DRT generation, the framework extends ITKTwoProjectionRegistration in several key areas, including:

Compliance with IEC 61217
Revised and consistent reference coordinate systems
This project provides a framework for 2D/3D registration using Digitally Reconstructed Topograms (DRTs), which are generated from 3D CT volumes using a modified version of the Siddon-Jacobs RayCast algorithm. See the siddonTril branch for implementation details.

Requirements

Work in progress — requirements and example code to be added.

Citation

If you use this code or method in your research, please cite the following paper:

Giovanni Fattori, Riccardo Via, et al.
Topogram and 3DCT geometry calibration for image-guided proton therapy with in-room CT-on-rails
Physics and Imaging in Radiation Oncology, 2025.
https://doi.org/10.1016/j.phro.2025.100799

BibTeX

@article{Fattori2025,
  author  = {Giovanni Fattori and Riccardo Via and others},
  title   = {Topogram and 3DCT geometry calibration for image-guided proton therapy with in-room CT-on-rails},
  journal = {Physics and Imaging in Radiation Oncology},
  year    = {2025},
  doi     = {10.1016/j.phro.2025.100799}
}

Requirements

Work in progress — requirements and example code to be added.

Contributors

Giovanni Fattori
Riccardo Via
Reto Ansorge