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Abstract #4908

Do deep learning-based qMRI parameter estimators improve clinical task performance?

Sean C. Epstein1,2, Timothy J. P. Bray3,4, Margaret Hall-Craggs3,4, and Hui Zhang1,2
1Computer Science, UCL, London, United Kingdom, 2Centre for Medical Image Computing, UCL, London, United Kingdom, 3Centre for Medical Imaging, UCL, London, United Kingdom, 4Imaging, UCLH, London, United Kingdom

Synopsis

Keywords: Machine Learning/Artificial Intelligence, Data AnalysisWe compare modern deep learning (DL)-based parameter-estimation methods to their traditional maximum-likelihood estimation (MLE) counterparts by evaluating each approach’s performance in two clinical classification tasks. This is motivated by recent work demonstrating the inherent bias-variance trade-off that differentiates different DL-based approaches. Results show how these trade-offs manifest in the ‘real world’ of tissue classification, and how they compare to the performance achievable with conventional iterative MLE.

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Keywords