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Abstract #0661

Dynamic MRI using Model-based deep learning and SToRM priors: MoDL-SToRM

Sampurna Biswas1, Hemant Kumar Aggarwal1, and Mathews Jacob1

1University of Iowa, Iowa city, IA, United States

We introduce a novel framework to combine deep-learned priors along with complementary image regularization penalties to reconstruct free breathing & ungated cardiac MRI data from highly undersampled multi-channel measurements. Image recovery is formulated as an optimization problem, where the cost function is the sum of data consistency term, convolutional neural network (CNN) denoising prior, and SmooThness regularization on manifolds (SToRM) prior that exploits the manifold structure of images in the dataset. Our results show the benefit in combining deep learned CNN priors with complementary image regularization penalties.

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