Numerical phantom generation to evaluate non-rigid CT/CBCT registration algorithms for prostate cancer radiotherapy. - Université de Rennes Accéder directement au contenu
Communication Dans Un Congrès Année : 2012

Numerical phantom generation to evaluate non-rigid CT/CBCT registration algorithms for prostate cancer radiotherapy.

Résumé

In Image-Guided Radiation Therapy of prostate cancer, the CBCT scan acquired at each treatment fraction could be used to estimate a cumulative dose distribution thanks to non-rigid registration. However, this cumulative dose estimation is highly sensitive to non-rigid registration errors. For this reason, validation of the registration algorithm with organ overlap measures or visual assessment is not sufficient. In this paper, we describe the construction of a numerical phantom based on a finite element model of the prostate and the neighbor organs which can be used to assess the non-rigid registration accuracy. Preliminary results show the potential of this phantom to better characterize registration algorithms than traditional Dice score.
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Dates et versions

hal-00906725 , version 1 (20-11-2013)

Identifiants

  • HAL Id : hal-00906725 , version 1

Citer

Mathieu Rubeaux, Guillaume Cazoulat, Aurélien Dumenil, Caroline Lafond, Oscar Acosta, et al.. Numerical phantom generation to evaluate non-rigid CT/CBCT registration algorithms for prostate cancer radiotherapy.. Image-Guidance and Multimodal Dose Planning in Radiation Therapy, Oct 2012, Nice, France. pp.74-81. ⟨hal-00906725⟩
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