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Abstract #1630

A phase constrained reconstruction method in compressed sensing

Guobin Li 1 , Maxim Zaitsev 1 , Esther Meyer 2 , Dominik Paul 2 , Jan Korvink 3,4 , and Jrgen Hennig 1

1 University Medical Center Freiburg, Freiburg, Baden-Wrttemberg, Germany, 2 Siemens Healthcare, Germany, 3 Department of Microsystems Engineering IMTEK, University of Freiburg, Baden-Wrttemberg, Germany, 4 Freiburg Institute of Advanced Studies (FRIAS), University of Freiburg, Baden-Wrttemberg, Germany

Half Fourier acquisition has widely been used for a long time to shorten the measurement time in turbo spin echo sequences.The combination of half Fourier acquisition with compressed sensing has also been investigated. One drawback of typical Homodyne and POCS based methods is that they brutally replace the phase of the resulting images by an estimate. We introduce a relaxed phase constraint term in the regularized reconstruction, to encourage the phase consistency between the result and the estimation, instead of an overall phase replacement in the compressed sensing reconstruction with half Fourier acquisition.

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