title: An optimized multislice acquisition sequence for the inversion-recovery MR imaging.
abstract: An optimized multislice data acquisition scheme for inversion-recovery MR imaging is proposed and experimental results are presented. In this new scheme, instead of forming a set of multislice inversion-recovery sequences in series for a given phase encoding step, 180 degrees inversion pulses corresponding to different slices are interwoven with the spin echo data acquisition sequence in an optimal way depending on the desired inversion-recovery time. For example, between the 180 degrees inversion RF pulse and the spin-echo imaging sequence, a number of imaging and inversion sequences are inserted with different slice combinations, i.e., long inversion-recovery time is effectively utilized for the other slice pre-inversion and data acquisition. With the optimized sequence, imaging time has been reduced by as much as a factor of four compared with the existing methods.
authors.affiliation: Department of Radiology, Columbia University, New York, NY 10032.
authors.forename: C H
authors.initials: CH
authors.lastname: Oh
authors.forename: S K
authors.initials: SK
authors.lastname: Hilal
authors.forename: I K
authors.initials: IK
authors.lastname: Mun
authors.forename: Z H
authors.initials: ZH
authors.lastname: Cho
mesh_terms: D001921:Brain / Q000033:anatomy & histology*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D008279:Magnetic Resonance Imaging / Q000379:methods*