EPFL
 Biomedical Imaging GroupSTI
EPFL
  Publications
English only   BIG > Publications > Regularized MRI


 CONTENTS
 Home Page
 News & Events
 People
 Publications
 Tutorials and Reviews
 Research
 Demos
 Download Algorithms

 DOWNLOAD
 PDF
 Postscript
 All BibTeX References

Wavelet-Regularized Reconstruction for Rapid MRI

M. Guerquin-Kern, D. Van De Ville, C. Vonesch, J.-C. Baritaux, K.P. Pruessmann, M. Unser

Proceedings of the Sixth IEEE International Symposium on Biomedical Imaging: From Nano to Macro (ISBI'09), Boston MA, USA, June 28-July 1, 2009, pp. 193-196.



We propose a reconstruction scheme adapted to MRI that takes advantage of a sparsity constraint in the wavelet domain. We show that artifacts are significantly reduced compared to conventional reconstruction methods. Our approach is also competitive with Total Variation regularization both in terms of MSE and computation time. We show that ℓ1 regularization allows partial recovery of the missing k-space regions. We also present a multi-level version that significantly reduces the computational cost.


@INPROCEEDINGS(http://bigwww.epfl.ch/publications/guerquinkern0901.html,
AUTHOR="Guerquin-Kern, M. and Van De Ville, D. and Vonesch, C. and
        Baritaux, J.-C. and Pruessmann, K.P. and Unser, M.",
TITLE="Wavelet-Regularized Reconstruction for Rapid {MRI}",
BOOKTITLE="Proceedings of the Sixth {IEEE} International Symposium on
        Biomedical Imaging: {F}rom Nano to Macro ({ISBI'09})",
YEAR="2009",
editor="",
volume="",
series="",
pages="193--196",
address="Boston MA, USA",
month="June 28-July 1,",
organization="",
publisher="",
note="")

© 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from IEEE.
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.