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Compressed Sensing Dynamic MRI Reconstruction Using GPU-accelerated 3D Convolutional Sparse Coding

  • Tran Minh Quan
  • Won-Ki JeongEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9902)

Abstract

In this paper, we introduce a fast alternating method for reconstructing highly undersampled dynamic MRI data using 3D convolutional sparse coding. The proposed solution leverages Fourier Convolution Theorem to accelerate the process of learning a set of 3D filters and iteratively refine the MRI reconstruction based on the sparse codes found subsequently. In contrast to conventional CS methods which exploit the sparsity by applying universal transforms such as wavelet and total variation, our approach extracts and adapts the temporal information directly from the MRI data using compact shift-invariant 3D filters. We provide a highly parallel algorithm with GPU support for efficient computation, and therefore, the reconstruction outperforms CPU implementation of the state-of-the art dictionary learning-based approaches by up to two orders of magnitude.

Notes

Acknowledgments

This work was partially supported by the 2016 Research Fund (1.160047.01) of UNIST, the R&D program of MOTIE/KEIT (10054548), the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2014R1A1A2058773) and the Bio & Medical Technology Development Program of the NRF funded by the Korean government, MSIP (NRF-2015M3A9A7029725).

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Authors and Affiliations

  1. 1.Ulsan National Institute of Science and Technology (UNIST)UlsanSouth Korea

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