title: A study of optimization of the complex hyperbolic secant inversion pulses.
abstract: The conjugate gradient method is used to optimize the inversion slice profile produced by complex hyperbolic secant selective pulses. An improved quality is obtained for the inversion slice profile at a price, however, of a lower immunity to the amplitude variation of radiofrequency pulses.
authors.affiliation: Department of Radiology, University of Florida, Gainesville.
authors.forename: J
authors.initials: J
authors.lastname: Mao
authors.forename: C
authors.initials: C
authors.lastname: Virapongse
authors.forename: J R
authors.initials: JR
authors.lastname: Fitzsimmons
mesh_terms: D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*