Lineshapes in phase-encoded spectroscopic imaging experiments

P. B. Barker, Brian D. Ross

Research output: Contribution to journalArticlepeer-review

Abstract

Two procedures for recording spectroscopic images with pure absorption mode lineshapes using phase-encoding pulsed field gradients are discussed and compared experimentally. Using a small phantom sample, both methods are shown to give significant improvements compared to the conventional absolute value display. It is found that the method based on the use of a symmetric data set is preferable to that based on a reversed precession experiment. To demonstrate its applicability to in vivo31P NMR, a surface coil placed over the scalp of a rabbit was used to record a one-dimensional phase-encoded spectrum. While the absolute value display of this data set contains overlap between the low-field ATP and the phosphocreatine resonances, these signals are completely resolved in the phase-sensitive spectrum.

Original languageEnglish (US)
Pages (from-to)467-473
Number of pages7
JournalJournal of Magnetic Resonance (1969)
Volume75
Issue number3
DOIs
StatePublished - Dec 1987
Externally publishedYes

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