title: Centric scan SPRITE magnetic resonance imaging.
abstract: Two rapid, pure phase encode, centric scan, Single Point Ramped Imaging with T1-Enhancement (SPRITE) MRI methods are described. Each retains the benefits of the standard SPRITE method, most notably the ability to image short T2* systems, while increasing the sensitivity and generality of the technique. The Spiral-SPRITE method utilizes a modified Archimedean spiral k-space trajectory. The Conical-SPRITE method utilizes a system of spirals mapped to conical surfaces to sample the k-space cube. The sampled k-space points are naturally Cartesian grid points, eliminating the requirement of a re-gridding procedure prior to image reconstruction. The effects of transient state behaviour on image resolution and signal/noise are explored.
authors.affiliation: Department of Physics, MRI Centre, PO Box 4400, University of New Brunswick, Fredericton, NB, Canada E3B 5A3.
authors.forename: Meghan
authors.initials: M
authors.lastname: Halse
authors.forename: David J
authors.initials: DJ
authors.lastname: Goodyear
authors.forename: Bryce
authors.initials: B
authors.lastname: MacMillan
authors.forename: Pavol
authors.initials: P
authors.lastname: Szomolanyi
authors.forename: David
authors.initials: D
authors.lastname: Matheson
authors.forename: Bruce J
authors.initials: BJ
authors.lastname: Balcom