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Some considerations concerning susceptibility, longitudinal relaxation time constants and motion artifacts in In vivo human spectroscopy
Author(s) -
Young I. R.,
Cox I. J.,
Coutts G. A.,
Bydder G. M.
Publication year - 1989
Publication title -
nmr in biomedicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.278
H-Index - 114
eISSN - 1099-1492
pISSN - 0952-3480
DOI - 10.1002/nbm.1940020524
Subject(s) - relaxation (psychology) , nuclear magnetic resonance , spectroscopy , in vivo , nuclear magnetic resonance spectroscopy , mixing (physics) , materials science , physics , chemistry , statistical physics , biology , quantum mechanics , neuroscience , microbiology and biotechnology
Artifacts due to localized susceptibility effects, variations in the spin‐lattice relaxation time constants of signals and a mixing of signals arising from tissue motions can contaminate otherwise credible results. The sources and magnitude of some of these are discussed and their likely impact assessed, so that the necessity of incorporating additional measurements in an individual study can be demonstrated.