Partial fourier partially parallel imaging.

Journal article

The techniques of partial Fourier (PF) and partially parallel imaging have been combined using a constrained reconstruction technique. The benefits compared with the individual techniques are reduced imaging time and/or an increase in signal-to-noise ratio. Low-resolution phase maps and coil sensitivities may be obtained using autocalibration or from a prescan followed by additional processing. Minor phase artifacts that are introduced by relying on conjugate symmetry can be reduced using a novel regularization scheme to vary the degree to which PF is used in the reconstruction. A nonrectilinear reconstruction algorithm is presented and the potential for motion artifact reduction is investigated using robust reconstruction.

Authors: Bydder, M; Robson, M

• Publication status: Published
• Journal: Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine
• Volume: 53
• Issue: 6
• Pages: 1393-1401
• Publication date: 2005-06-01
• DOI: 10.1002/mrm.20492
• EISSN: 1522-2594
• ISSN: 0740-3194
• Language: English
• Keywords: Brain Mapping; Magnetic Resonance Imaging; Algorithms; Phantoms, Imaging; Artifacts; Calibration; Fourier Analysis; Image Processing, Computer-Assisted