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Abstract #0346

DeepFittingNet: a deep neural network-based approach for simplifying cardiac T1 and T2 estimation with improved robustness

Rui Guo1, Dongyue Si2, Yingwei Fan1, Haina Zhang3, Haiying Ding2, and Xiaoying Tang4
1School of Medical Technology, Beijing Institute of Technology, Beijing, China, 2Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China, 3Center for Community Health Service, Peking University Health Science Center, Beijing, China, 4School of Life Science, Beijing Institute of Technology, Beijing, China

Synopsis

Keywords: Myocardium, Machine Learning/Artificial Intelligence, Cardiac T1 and T2 mapping, myocardium tissue characterization

The most used curve-fitting method for map reconstruction of the cardiovascular magnetic resonance mapping is sensitive to the initial conditions, time-consuming, and prone to fitting error. In this study, we sought to develop a deep-learning approach (DeepFittingNet) to perform T1 and T2 calculations for the most clinically used cardiac parametric mappings, to simplify the clinical workflow of cardiac T1/T2 measurements and improve the robustness. In testing, DeepFittingNet could perform T1/T2 estimation tasks for MOLLI, SASHA, and T2-prep bSSFP. Compared to the curve-fitting algorithm, DeepFittingNet could improve the robustness for inversion-recovery T1 estimation and have comparable accuracy and precision.

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