Optimal phased-array combination for spectroscopy

Mark Bydder, Gavin Hamilton, Takeshi Yokoo, Claude B. Sirlin

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

A method for making weighted linear combinations of the spectra acquired by a phased-array coil is described. Unlike most previous combination methods, no special reference points in the data are chosen to represent the coil weights. Instead, all the data points are used, which results in optimal signal-to-noise ratio more reliable estimation. The method uses singular value decomposition to identify the coil weights and extract the principal component of variation in the signal. Subsequent processing of the combined signal (e.g., Fourier transform, baseline correction, phasing) may proceed as per a single coil acquisition.

Original languageEnglish (US)
Pages (from-to)847-850
Number of pages4
JournalMagnetic Resonance Imaging
Volume26
Issue number6
DOIs
StatePublished - Jul 2008

Fingerprint

phased arrays
Singular value decomposition
Spectrum Analysis
Signal to noise ratio
Fourier transforms
coils
Spectroscopy
Processing
spectroscopy
Weights and Measures
Signal-To-Noise Ratio
Fourier Analysis
acquisition
signal to noise ratios
decomposition

Keywords

  • Coils
  • Phased Array
  • Spectroscopy
  • SVD

ASJC Scopus subject areas

  • Biophysics
  • Clinical Biochemistry
  • Structural Biology
  • Radiology Nuclear Medicine and imaging
  • Condensed Matter Physics

Cite this

Optimal phased-array combination for spectroscopy. / Bydder, Mark; Hamilton, Gavin; Yokoo, Takeshi; Sirlin, Claude B.

In: Magnetic Resonance Imaging, Vol. 26, No. 6, 07.2008, p. 847-850.

Research output: Contribution to journalArticle

Bydder, Mark ; Hamilton, Gavin ; Yokoo, Takeshi ; Sirlin, Claude B. / Optimal phased-array combination for spectroscopy. In: Magnetic Resonance Imaging. 2008 ; Vol. 26, No. 6. pp. 847-850.
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