title: Noninterleaved velocity encodings for improved temporal and spatial resolution in phase-contrast magnetic resonance imaging.
abstract: A segmented k-space acquisition technique using noninterleaved velocity encodings is presented to reduce spatial and temporal blur in phase-contrast cardiovascular magnetic resonance imaging. A translating phantom with pulsatile flow was used to simulate imaging of coronary arteries on a 1.5-T GE Echospeed scanner, using both interleaved and noninterleaved velocity encodings. The results demonstrate that the use of noninterleaved velocity encodings reduces spatial and temporal blur by improving the temporal resolution.
authors.affiliation: Department of Biomedical Engineering, Wake Forest University School of Medicine, Winston-Salem, NC 27157-1022, USA. crhamilt@wfubmc.edu
authors.forename: Craig A
authors.initials: CA
authors.lastname: Hamilton
authors.forename: Jennifer H
authors.initials: JH
authors.lastname: Jordan
authors.forename: Robert A
authors.initials: RA
authors.lastname: Kraft
authors.forename: W Gregory
authors.initials: WG
authors.lastname: Hundley
mesh_terms: D003198:Computer Simulation; D003331:Coronary Vessels / Q000473:pathology* / Q000503:physiopathology*; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008858:Microscopy, Phase-Contrast; D008955:Models, Cardiovascular; D019047:Phantoms, Imaging; D011673:Pulsatile Flow