Opportunities, Challenges & Trends in Characterizing the Quality & Reliability of AI-Based Image Reconstruction
Mariya Doneva1
1Philips Research Hamburg, Hamburg, Germany
Synopsis
Keywords: Image acquisition: Machine learning
This
lecture will review some of the techniques to minimize the risk of unwanted
artifacts in AI-based image reconstruction that can be embedded in the model development
process. In addition, opportunities for automated testing of model robustness
and image quality validation will be
discussed.
AI-based
reconstruction has the potential to significantly improve image quality
compared to prior fast imaging techniques such as parallel imaging and
compressed sensing. This can be used to
further speed up MRI scans leading to higher patient throughput and improved
motion robustness. Research in this field
has shown many success stories and all major vendors offer an AI-based
reconstruction product option.
However,
there are concerns regarding the quality and reliability of AI-based image
reconstruction. How would the reconstruction fail? Would it remove or add
structure to the images? Are potential artifacts clearly recognizable or do they
mimic anatomy/pathology? Questions like these are often discussed and the
concerns are understandable. AI-based image reconstruction techniques are not a
magic wand and like other techniques, they can also fail.
This
lecture will review some of the techniques to minimize the risk of unwanted
artifacts in AI-based image reconstruction that can be embedded in the model development
process. In addition, opportunities for automated testing of model robustness
and image quality validation will be
discussed. Acknowledgements
No acknowledgement found.References
1. Good Machine Learning Practice for Medical Device Development: Guiding Principles | FDA https://www.fda.gov/medical-devices/software-medical-device-samd/good-machine-learning-practice-medical-device-development-guiding-principles
2. Antun V, Renna F, Poon C, Adcock B, Hansen AC. On
instabilities of deep learning in image reconstruction and the potential costs
of AI. Proc Natl Acad Sci U S A. 2020;117(48):30088-30095.
doi:10.1073/pnas.1907377117
Proc. Intl. Soc. Mag. Reson. Med. 31 (2023)