Analytical form of Shepp-Logan phantom for parallel MRI

Author

Guerquin-Kern, M. ; Karahanoglu, F.I. ; Van De Ville, D. ; Pruessmann, K.P. ; Unser, M.

Author_Institution

Biomed. Imaging Group, Ecole Polytech. Fed. de Lausanne (EPFL), Lausanne, Switzerland

fYear

2010

fDate

14-17 April 2010

Firstpage

261

Lastpage

264

Abstract

We present an analytical form of ground-truth k-space data for the 2-D Shepp-Logan brain phantom in the presence of multiple and non-homogeneous receiving coils. The analytical form allows us to conduct realistic simulations and validations of reconstruction algorithms for parallel MRI. The key contribution of our work is to use a polynomial representation of the coil´s sensitivity. We show that this method is particularly accurate and fast with respect to the conventional methods. The implementation is made available to the community.

Keywords

biomedical MRI; brain; coils; image reconstruction; medical image processing; phantoms; physiological models; Shepp-Logan phantom; ground-truth k-space data; parallel MRI; phantom; polynomial representation; receiving coils; reconstruction algorithms; Analytical models; Biomedical image processing; Biomedical imaging; Coils; Discrete Fourier transforms; Image analysis; Image reconstruction; Imaging phantoms; Magnetic resonance imaging; Reconstruction algorithms; Shepp-Logan; analytic simulation; non-homogeneous coil; pMRI; parallel magnetic resonance imaging; phantom;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Imaging: From Nano to Macro, 2010 IEEE International Symposium on

Conference_Location

Rotterdam

ISSN

1945-7928

Print_ISBN

978-1-4244-4125-9

Electronic_ISBN

1945-7928

Type

conf

DOI

10.1109/ISBI.2010.5490365

Filename

5490365