title: Analytical solution for phase modulation in BURST imaging with optimum sensitivity.
abstract: In order to improve the efficiency of BURST imaging, a new phase-modulation scheme of the DANTE-type RF excitation is proposed. It is shown that analytical optimization of the phase-modulation scheme with optimal SNR can be found for an arbitrary number N of subpulses in the RF excitation. Both theory and experiment indicate a maximum attainable gain in efficiency of the square root of N, compared to nonmodulated (constant-phase) excitation schemes.
authors.affiliation: NIH in Vivo NMR Research Center, BEIP, NCRR, Bethesda, Maryland 20892-1060, USA.
authors.forename: P
authors.initials: P
authors.lastname: van Gelderen
authors.forename: J H
authors.initials: JH
authors.lastname: Duyn
authors.forename: C T
authors.initials: CT
authors.lastname: Moonen
mesh_terms: D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008433:Mathematics; D008961:Models, Structural; D012680:Sensitivity and Specificity