期刊
MAGNETIC RESONANCE IMAGING
卷 26, 期 6, 页码 847-850出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.mri.2008.01.050
关键词
spectroscopy; SVD; phased array; coils
资金
- NIDDK NIH HHS [R01 DK075128-04, R01 DK075128] Funding Source: Medline
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. (C) 2008 Elsevier Inc. All rights reserved.
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