COMPARING INDIVIDUAL SIGNAL-AVERAGED SPECTRA

Authors
SPENCER RGS
Citation
Rgs. Spencer, COMPARING INDIVIDUAL SIGNAL-AVERAGED SPECTRA, Magnetic resonance in medicine, 40(2), 1998, pp. 327-329
Citations number
3
Categorie Soggetti
Radiology,Nuclear Medicine & Medical Imaging
Journal title
Magnetic resonance in medicine → ACNP
ISSN journal
07403194
Volume
40
Issue
2
Year of publication
1998
Pages
327 - 329
Database
ISI
SICI code
0740-3194(1998)40:2<327:CISS>2.0.ZU;2-Q
Abstract
It is demonstrated here that individual signal-averaged NMR spectra ca n be compared statistically in a rigorous fashion. This is accomplishe d by considering the ensemble of single acquisitions, which are summed to produce spectra. Applications of this concept include assessment o f the statistical significance of apparent metabolite variations in co ntrol preparations and quantitative comparison of signals obtained dur ing the fast response period in functional MRI.