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Accurate quantification of in vivo 31 P NMR signals using the variable projection method and prior knowledge
Author(s) -
van der Veen J. W. C.,
de Beer R.,
Luyten P. R.,
van Ormondt D.
Publication year - 1988
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910060111
Subject(s) - projection (relational algebra) , function (biology) , variable (mathematics) , domain (mathematical analysis) , in vivo , computer science , time domain , nuclear magnetic resonance , mathematics , algorithm , physics , mathematical analysis , microbiology and biotechnology , evolutionary biology , biology , computer vision
Free induction decay signals are analyzed by fitting a model function directly in the time domain. No starting values are needed for linear model parameters, and omission of corrupted data points poses no problems. A significant gain of accuracy is achieved by imposing prior knowledge about the model parameters. © 1988 Academic Press, Inc.