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Abstract #3311

SuperMAP: Superfast MR Mapping with Joint Under-sampling using Deep Combined Network

Hongyu Li1, Mingrui Yang2, Jeehun Kim2, Chaoyi Zhang1, Ruiying Liu1, Peizhou Huang3, Sunil Kumar Gaire1, Dong Liang4, Xiaoliang Zhang3, Xiaojuan Li2, and Leslie Ying1,3
1Electrical Engineering, University at Buffalo, State University of New York, Buffalo, NY, United States, 2Program of Advanced Musculoskeletal Imaging (PAMI), Cleveland Clinic, Cleveland, OH, United States, 3Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, United States, 4Paul C. Lauterbur Research Center for Biomedical Imaging, Medical AI research center, SIAT, CAS, Shenzhen, China

This abstract presents a combined deep learning framework SuperMAP to generate MR parameter maps from very few subsampled echo images. The method combines deep residual convolutional neural networks (DRCNN) and fully connected networks (FC) to exploit the nonlinear relationship between and within the combined subsampled T1rho/T2 weighted images and the combined T1rho/T2 maps. Experimental results show that the proposed combined network is superior to single CNN network and can generate accurate T1rho and T2 maps simultaneously from only three subsampled echoes within one scan with results comparable to reference from fully sampled 8-echo images each for two separate scans.

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