Learning MRI Artifact Removal With Unpaired Data

• URL: http://arxiv.org/abs/2110.04604v1
• Date: Sat, 9 Oct 2021 16:09:27 GMT
• Title: Learning MRI Artifact Removal With Unpaired Data
• Authors: Siyuan Liu, Kim-Han Thung, Liangqiong Qu, Weili Lin, Dinggang Shen, and Pew-Thian Yap
• Abstract summary: Retrospective artifact correction (RAC) improves image quality post acquisition and enhances image usability. Recent machine learning driven techniques for RAC are predominantly based on supervised learning. Here we show that unwanted image artifacts can be disentangled and removed from an image via an RAC neural network learned with unpaired data.
• Score: 74.48301038665929
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Retrospective artifact correction (RAC) improves image quality post acquisition and enhances image usability. Recent machine learning driven techniques for RAC are predominantly based on supervised learning and therefore practical utility can be limited as data with paired artifact-free and artifact-corrupted images are typically insufficient or even non-existent. Here we show that unwanted image artifacts can be disentangled and removed from an image via an RAC neural network learned with unpaired data. This implies that our method does not require matching artifact-corrupted data to be either collected via acquisition or generated via simulation. Experimental results demonstrate that our method is remarkably effective in removing artifacts and retaining anatomical details in images with different contrasts.

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