An analysis of the intrinsic resonance offset dependence of magnetization generated by stimulated echo pulse sequences for noncoupled spins.

Publication Type	Academic Article
Authors	Ballon D, Garwood M, Koutcher J
Journal	Magn Reson Imaging
Volume	9
Issue	4
Pagination	569-75
Date Published	01/01/1991
ISSN	0730-725X
Keywords	Magnetic Resonance Spectroscopy
Abstract	It is demonstrated that the basic radiofrequency pulse train used to generate stimulated echoes (90x-tau TE-90x-tau TM-90x-tau TE-Acq.) is in general characterized by strong amplitude and phase modulations of the transverse magnetization as a function of the resonance offset. Two dephasing techniques which eliminate the modulations are investigated both theoretically and experimentally, and a simple formula is derived for calculating the relative modulation across a spectrum as a function of gradient strength and duration, echo delay, and spectral linewidth.
DOI	10.1016/0730-725x(91)90044-m
PubMed ID	1779728