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• W4220730149 abstract "Medical imaging quantitative features had once disputable usefulness in clinical studies. Nowadays, advancements in analysis techniques, for instance through machine learning, have enabled quantitative features to be progressively useful in diagnosis and research. Tissue characterisation is improved via the radiomics features, whose extraction can be automated. Despite the advances, stability of quantitative features remains an important open problem. As features can be highly sensitive to variations of acquisition details, it is not trivial to quantify stability and efficiently select stable features. In this work, we develop and validate a Computed Tomography (CT) simulator environment based on the publicly available ASTRA toolbox ( www.astra-toolbox.com ). We show that the variability, stability and discriminative power of the radiomics features extracted from the virtual phantom images generated by the simulator are similar to those observed in a tandem phantom study. Additionally, we show that the variability is matched between a multi-center phantom study and simulated results. Consequently, we demonstrate that the simulator can be utilised to assess radiomics features' stability and discriminative power." @default.
• W4220730149 created "2022-04-03" @default.
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• W4220730149 date "2022-03-18" @default.
• W4220730149 modified "2023-09-26" @default.
• W4220730149 title "Assessing radiomics feature stability with simulated CT acquisitions" @default.
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• W4220730149 doi "https://doi.org/10.1038/s41598-022-08301-1" @default.
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