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Cardiac MR Motion Artefact Correction from K-space Using Deep Learning-Based Reconstruction

  • Ilkay Oksuz
  • James Clough
  • Aurelien Bustin
  • Gastao Cruz
  • Claudia Prieto
  • Rene Botnar
  • Daniel Rueckert
  • Julia A. Schnabel
  • Andrew P. King
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11074)

Abstract

Incorrect ECG gating of cardiac magnetic resonance (CMR) acquisitions can lead to artefacts, which hampers the accuracy of diagnostic imaging. Therefore, there is a need for robust reconstruction methods to ensure high image quality. In this paper, we propose a method to automatically correct motion-related artefacts in CMR acquisitions during reconstruction from k-space data. Our method is based on the Automap reconstruction method, which directly reconstructs high quality MR images from k-space using deep learning. Our main methodological contribution is the addition of an adversarial element to this architecture, in which the quality of image reconstruction (the generator) is increased by using a discriminator. We train the reconstruction network to automatically correct for motion-related artefacts using synthetically corrupted CMR k-space data and uncorrupted reconstructed images. Using 25000 images from the UK Biobank dataset we achieve good image quality in the presence of synthetic motion artefacts, but some structural information was lost. We quantitatively compare our method to a standard inverse Fourier reconstruction. In addition, we qualitatively evaluate the proposed technique using k-space data containing real motion artefacts.

Keywords

Cardiac MR Image reconstruction Deep learning UK Biobank Image artefacts Image quality Automap 

Notes

This work was supported by an EPSRC programme Grant (EP/P001009/1) and the Wellcome EPSRC Centre for Medical Engineering at the School of Biomedical Engineering and Imaging Sciences, King’s College London (WT 203148/Z/16/Z). This research has been conducted using the UK Biobank Resource under Application Number 17806. The GPU used in this research was generously donated by the NVIDIA Corporation.

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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Ilkay Oksuz
    • 1
  • James Clough
    • 1
  • Aurelien Bustin
    • 1
  • Gastao Cruz
    • 1
  • Claudia Prieto
    • 1
  • Rene Botnar
    • 1
  • Daniel Rueckert
    • 2
  • Julia A. Schnabel
    • 1
  • Andrew P. King
    • 1
  1. 1.School of Biomedical Engineering and Imaging SciencesKing’s College LondonLondonUK
  2. 2.Biomedical Image Analysis GroupImperial College LondonLondonUK

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