Literature DB >> 12852915

SNR-optimality of sum-of-squares reconstruction for phased-array magnetic resonance imaging.

Erik G Larsson1, Deniz Erdogmus, Rui Yan, Jose C Principe, Jeffrey R Fitzsimmons.   

Abstract

We consider the commonly used "Sum-of-Squares" (SoS) reconstruction method for phased-array magnetic resonance imaging with unknown coil sensitivities. We show that the signal-to-noise ratio (SNR) in the image produced by SoS is asymptotically (as the input SNR--> infinity ) equal to that of maximum-ratio combining, which is the best unbiased reconstruction method when the coil sensitivities are known. Finally, we discuss the implications of this result.

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Year:  2003        PMID： 12852915     DOI： 10.1016/s1090-7807(03)00132-0

Source DB:  PubMed          Journal:  J Magn Reson        ISSN： 1090-7807            Impact factor:   2.229


  23 in total

1.  Optimization of the number of selectable channels for spine phased array coils for transverse imaging.

Authors:  Susumu Moriya; Yukio Miki; Tsuneo Yokobayashi; Akira Yamamoto; Mitsunori Kanagaki; Yoshiaki Komori; Koji Fujimoto; Mitsunori Ishikawa
Journal:  Jpn J Radiol       Date:  2011-04-26       Impact factor: 2.374

2.  Multiple-stepped Zeeman field offset method applied in acquiring enhanced resolution spin-echo electron paramagnetic resonance images.

Authors:  Payam Seifi; Boris Epel; Colin Mailer; Howard J Halpern
Journal:  Med Phys       Date:  2010-10       Impact factor: 4.071

3.  Frequency bandwidth extension by use of multiple Zeeman field offsets for electron spin-echo EPR oxygen imaging of large objects.

Authors:  Payam Seifi; Boris Epel; Subramanian V Sundramoorthy; Colin Mailer; Howard J Halpern
Journal:  Med Phys       Date:  2011-06       Impact factor: 4.071

4.  Parallel magnetic resonance image reconstruction from a single-element parametric amplifier.

Authors:  Roshan Timilsina; Chunqi Qian
Journal:  Magn Reson Imaging       Date:  2019-08-16       Impact factor: 2.546

5.  (1)H-MR imaging of the lungs at 3.0 T.

Authors:  Sergei I Obruchkov; Michael D Noseworthy
Journal:  Quant Imaging Med Surg       Date:  2016-02

6.  Fisher information and Cramér-Rao lower bound for experimental design in parallel imaging.

Authors:  Mustapha Bouhrara; Richard G Spencer
Journal:  Magn Reson Med       Date:  2017-11-01       Impact factor: 4.668

7.  Optimal decay rate constant estimates from phased array data utilizing joint Bayesian analysis.

Authors:  James D Quirk; Alexander L Sukstanskii; G Larry Bretthorst; Dmitriy A Yablonskiy
Journal:  J Magn Reson       Date:  2009-01-13       Impact factor: 2.229

Review 8.  Image reconstruction: an overview for clinicians.

Authors:  Michael S Hansen; Peter Kellman
Journal:  J Magn Reson Imaging       Date:  2014-06-25       Impact factor: 4.813

9.  Effects of image reconstruction on fiber orientation mapping from multichannel diffusion MRI: reducing the noise floor using SENSE.

Authors:  S N Sotiropoulos; S Moeller; S Jbabdi; J Xu; J L Andersson; E J Auerbach; E Yacoub; D Feinberg; K Setsompop; L L Wald; T E J Behrens; K Ugurbil; C Lenglet
Journal:  Magn Reson Med       Date:  2013-02-07       Impact factor: 4.668

10.  Single-shot multiecho parallel echo-planar imaging (EPI) for diffusion tensor imaging (DTI) with improved signal-to-noise ratio (SNR) and reduced distortion.

Authors:  Roger Nana; Tiejun Zhao; Xiaoping Hu
Journal:  Magn Reson Med       Date:  2008-12       Impact factor: 4.668
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