Noninterleaved velocity encodings for improved temporal and spatial resolution in phase-contrast magnetic resonance imaging.
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.
Hamilton
Craig A
CA
Department of Biomedical Engineering, Wake Forest University School of Medicine, Winston-Salem, NC 27157-1022, USA. crhamilt@wfubmc.edu
Jordan
Jennifer H
JH
Kraft
Robert A
RA
Hundley
W Gregory
WG
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