Analytical form of Shepp-Logan phantom for parallel MRI

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 cont...

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Bibliographic Details
Main Authors: Guerquin-Kern, M, Karahanoğlu, F I, Van De Ville, D, Pruessmann, K P, Unser, M
Format: Conference Proceeding
Language:English
Subjects:
analytic simulation
Analytical models
Biomedical image processing
Biomedical imaging
Coils
Discrete Fourier transforms
Image analysis
Image reconstruction
Imaging phantoms
Magnetic resonance imaging
non-homogeneous coil
parallel magnetic resonance imaging
phantom
pMRI
Reconstruction algorithms
Shepp-Logan
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Description
Summary: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.
ISSN:1945-7928
1945-8452
DOI:10.1109/ISBI.2010.5490365