PMID- 33584973 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210217 IS - 1945-7928 (Print) IS - 1945-8452 (Electronic) IS - 1945-7928 (Linking) VI - 2018 DP - 2018 Apr TI - MODEL BASED IMAGE RECONSTRUCTION USING DEEP LEARNED PRIORS (MODL). PG - 671-674 LID - 10.1109/isbi.2018.8363663 [doi] AB - We introduce a model-based image reconstruction framework, where we use a deep convolution neural network (CNN) based regularization prior. We rely on a recursive algorithm, which alternates between a CNN based denoising step and enforcement of data consistency. Unrolling the recursive algorithm yields a deep network that is trained using backpropagation. The unique aspect of this method is the use of the same CNN weights at each iteration, which makes the resulting structure consistent with the model-based formulation. Also, this approach reduces the number of trainable parameters, which hence lower the amount of training data needed. The use of a forward model also reduces the size of the network and enables the exploitation additional prior information available from calibration data. The use of the framework for multichannel MRI reconstruction provides improved reconstructions, compared to other state-of-the-art methods. FAU - Aggarwal, Hemant Kumar AU - Aggarwal HK AD - University of Iowa, Iowa, USA. FAU - Mani, Merry P AU - Mani MP AD - University of Iowa, Iowa, USA. FAU - Jacob, Mathews AU - Jacob M AD - University of Iowa, Iowa, USA. LA - eng GR - R01 EB019961/EB/NIBIB NIH HHS/United States PT - Journal Article DEP - 20180524 PL - United States TA - Proc IEEE Int Symp Biomed Imaging JT - Proceedings. IEEE International Symposium on Biomedical Imaging JID - 101492570 PMC - PMC7876898 MID - NIHMS1667933 OTO - NOTNLM OT - Deep learning OT - convolutional neural network OT - parallel imaging EDAT- 2018/04/01 00:00 MHDA- 2018/04/01 00:01 PMCR- 2021/02/11 CRDT- 2021/02/15 06:09 PHST- 2021/02/15 06:09 [entrez] PHST- 2018/04/01 00:00 [pubmed] PHST- 2018/04/01 00:01 [medline] PHST- 2021/02/11 00:00 [pmc-release] AID - 10.1109/isbi.2018.8363663 [doi] PST - ppublish SO - Proc IEEE Int Symp Biomed Imaging. 2018 Apr;2018:671-674. doi: 10.1109/isbi.2018.8363663. Epub 2018 May 24.