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Repeatability of Pyradiomics Features

Key Investigators

• Michael Schwier (BWH/HMS)
• Joost van Griethuysen (NKI)
• Hugo Aerts (DFCI)
• Fiona Fennessy (BWH/DFCI)
• Andrey Fedorov (BWH/HMS)
• Jennifer Nitsch (MEVIS)

Project Description

Objective

1. Understand appropriate measures and strategies to assess repeatability of radiomics features on test-retest data
   • Critically review current approaches to this in literature
2. Design a study for assessing pyradiomics repeatibility on Prostate MRI test-retest data.

Approach and Plan

1. Review/discuss approaches from current literature
2. Investigate the results on the Prostate MRI test-retest data
3. Draft a paper on pyradiomics repeatability evaluated on the Prostate MRI test-retest data

Progress and Next Steps

1. Short discussions about approach to evaluation and measures
2. Next step: Write the paper

Illustrations

Background and References

• Source code
• Paper on the Prostate MRI data: Fedorov A, Vangel MG, Tempany CM, Fennessy FM. Multiparametric Magnetic Resonance Imaging of the Prostate: Repeatability of Volume and Apparent Diffusion Coefficient Quantification. Invest Radiol. 2017;52(9):538-46. doi:10.1097/RLI.0000000000000382.