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arXiv · 2102.13066

On Instabilities of Conventional Multi-Coil MRI Reconstruction to Small Adverserial Perturbations

Chi Zhang·Jinghan Jia·Burhaneddin Yaman·Steen Moeller·Sijia Liu·Mingyi Hong·Mehmet Akçakaya
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Abstract

Although deep learning (DL) has received much attention in accelerated MRI, recent studies suggest small perturbations may lead to instabilities in DL-based reconstructions, leading to concern for their clinical application. However, these works focus on single-coil acquisitions, which is not practical. We investigate instabilities caused by small adversarial attacks for multi-coil acquisitions. Our results suggest that, parallel imaging and multi-coil CS exhibit considerable instabilities against small adversarial perturbations.

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Chi Zhang, Jinghan Jia, Burhaneddin Yaman, Steen Moeller, Sijia Liu, Mingyi Hong, Mehmet Akçakaya. 2021-02-25. On Instabilities of Conventional Multi-Coil MRI Reconstruction to Small Adverserial Perturbations. https://arxiv.org/abs/2102.13066

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