A Dempster-Shafer Approach to Trustworthy AI With Application to Fetal Brain MRI Segmentation

Lucas Fidon, Michael Aertsen, Florian Kofler, Andrea Bink, Anna L David, Thomas Deprest, Doaa Emam, Frédéric Guffens, András Jakab, Gregor Kasprian, Patric Kienast, Andrew Melbourne, Bjoern Menze, Nada Mufti, Ivana Pogledic, Daniela Prayer, Marlene Stuempflen, Esther Van Elslander, Sebastien Ourselin, Jan DeprestTom Vercauteren

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
68 Downloads (Pure)

Abstract

Deep learning models for medical image segmentation can fail unexpectedly and spectacularly for pathological cases and images acquired at different centers than training images, with labeling errors that violate expert knowledge. Such errors undermine the trustworthiness of deep learning models for medical image segmentation. Mechanisms for detecting and correcting such failures are essential for safely translating this technology into clinics and are likely to be a requirement of future regulations on artificial intelligence (AI). In this work, we propose a trustworthy AI theoretical framework and a practical system that can augment any backbone AI system using a fallback method and a fail-safe mechanism based on Dempster-Shafer theory. Our approach relies on an actionable definition of trustworthy AI. Our method automatically discards the voxel-level labeling predicted by the backbone AI that violate expert knowledge and relies on a fallback for those voxels. We demonstrate the effectiveness of the proposed trustworthy AI approach on the largest reported annotated dataset of fetal MRI consisting of 540 manually annotated fetal brain 3D T2w MRIs from 13 centers. Our trustworthy AI method improves the robustness of four backbone AI models for fetal brain MRIs acquired across various centers and for fetuses with various brain abnormalities.

Original languageEnglish
Article number10388220
Pages (from-to)3784-3795
Number of pages12
JournalIEEE Transactions on Pattern Analysis and Machine Intelligence
Volume46
Issue number5
Early online date10 Jan 2024
DOIs
Publication statusPublished - 1 May 2024

Keywords

  • eess.IV
  • cs.AI
  • cs.CV
  • cs.LG

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