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Abstract #3453

The impact of streak-removal on deep learning reconstruction of radial datasets

Brian Patrick Toner1, Zhiyang Fu2, Rohit Philip3, Diego R. Martin4, Maria Altbach3, and Ali Bilgin2,3,5
1Applied Mathematics, University of Arizona, Tucson, AZ, United States, 2Electrical and Computer Engineering, University of Arizona, Tucson, AZ, United States, 3Department of Medical Imaging, University of Arizona, Tucson, AZ, United States, 4Houston Methodist Hospital, Houston, TX, United States, 5Biomedical Engineering, University of Arizona, Tucson, AZ, United States

Synopsis

Recently, deep learning models have been developed for reconstructing data acquired using radial turbo spin echo sequences, yielding images at multiple echo times as well as co-registered T2 maps. In radial imaging, streaking artifacts from anatomical regions where the magnetic field gradients are nonlinear can obscure pathology and impact accuracy of parameter mapping. In this work, we demonstrate that removal of streaking artifacts from data prior to training can provide substantial improvement in the reconstruction performance of deep learning methods.

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