Abstract #3692
A Variational Approach for Coil-Sensitivity Estimation for Undersampled Phase-Sensitive Dynamic MRI Reconstruction
Matthias Schloegl 1 , Martin Holler 2 , Kristian Bredies 2 , and Rudolf Stollberger 1
1
Institute of Medical Engineering, Graz
University of Technology, Graz, Styria, Austria,
2
Department
of Mathematics and Scientific Computing, University of
Graz, Graz, Styria, Austria
Optimal coil sensitivity estimation for the
phase-consistent array combination and SENSE like
reconstruction for undersampled dynamic and static MR
data remains a challenge. The best possible quality for
advanced reconstruction methods is bounded by the
quality of coil-sensitivity estimation. Furthermore a
growing number of MR applications require acceleration
together with measurement of phase and changes in phase.
We propose an iterative variational approach that takes
advantage of a-priory knowledge for the magnitude and
phase of the coil sensitivities and also for the complex
transverse magnetization.
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