4.7 Article

Key challenges in normal tissue complication probability model development and validation: towards a comprehensive strategy

Journal

RADIOTHERAPY AND ONCOLOGY
Volume 148, Issue -, Pages 151-156

Publisher

ELSEVIER IRELAND LTD
DOI: 10.1016/j.radonc.2020.04.012

Keywords

Normal Tissue Complication Probability models; Normal tissue; Statistical methods; Head and neck

Funding

  1. Dutch Cancer Society (KWF) [RUG 2015-7899]

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Normal Tissue Complication Probability (NTCP) models can be used for treatment plan optimisation and patient selection for emerging treatment techniques. We discuss and suggest methodological approaches to address key challenges in NTCP model development and validation, including: missing data, non-linear response relationships, multicollinearity between predictors, overfitting, generalisability and the prediction of multiple complication grades at multiple time points. The methodological approaches chosen are aimed to improve the accuracy, transparency and robustness of future NTCP-models. We demonstrate our methodological approaches using clinical data. (C) 2020 The Authors. Published by Elsevier B.V.

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