title: An analysis of the intrinsic resonance offset dependence of magnetization generated by stimulated echo pulse sequences for noncoupled spins.
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.
authors.affiliation: Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York 10021.
authors.forename: D
authors.initials: D
authors.lastname: Ballon
authors.forename: M
authors.initials: M
authors.lastname: Garwood
authors.forename: J A
authors.initials: JA
authors.lastname: Koutcher
mesh_terms: D009682:Magnetic Resonance Spectroscopy / Q000295:instrumentation / Q000379:methods*; D008280:Magnetics; D008433:Mathematics; D008962:Models, Theoretical; D013057:Spectrum Analysis; D013997:Time Factors