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Abstract #3676

A metric to access the noise error propagation in phase-based MR-EPT reconstruction

Chuanjiang Cui1, Kyu-Jin Jung1, Thierry G. Meerbothe2,3, Cornelis A.T. van den Berg2,3, Stefano Mandija2,3, and Dong-Hyun Kim1
1Department of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea, Republic of, 2Department of Radiotherapy, Division of Imaging and Oncology, UMC Utrecht, Utrecht, Netherlands, 3Computational Imaging Group for MR Diagnostics and Therapy, UMC Utrecht, Utrecht, Netherlands

Synopsis

Keywords: Electromagnetic Tissue Properties, Electromagnetic Tissue Properties, Metric

Motivation: To devise a metric to assess the extent of noise amplification in MR-EPT reconstruction algorithms.

Goal(s): We explore the correlation between the proposed metric and noise amplification for phase-based conductivity reconstructions.

Approach: This study conducted experiments using a concentric cylindrical simulated phantom with uniform electrical properties. Additionally, the proposed metric was applied to in-vivo data.

Results: This metric serves as an indicator of the reliability of the reconstructed conductivity maps. the size of the Laplacian kernel and the chosen weighting method significantly impact the metric.

Impact: This work reveals that the power of a designed MR-EPT reconstruction kernel acts as a noise error propagation factor in the MR-EPT conductivity reconstruction. Consequently, this map can offer insights into the reliability of reconstructed conductivity map.

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