G - Physics – 01 – R
Patent
G - Physics
01
R
G01R 33/20 (2006.01)
Patent
CA 2341812
A method of generating a spectroscopic image using magnetic resonance includes obtaining spectroscopic data from voxels within the volume of interest of the sample by subjecting the sample to repeated magnetic resonance experiments in one, two or three dimensions. Each experiment is effected over a repetition time TR which is defined by the sum of the excitation time, the data acquisition time and any delay time prior to the next experiment. The experiments are arranged such that the repetition time is gradually reduced for experiments encoding higher spatial frequencies relative to an initial repetition time for experiments encoding lower spatial frequencies. To permit long data acquisition times at low spatial frequencies, but short repetition times at higher spatial frequencies, the initial data acquisition time is relatively long but is gradually reduced for experiments encoding higher spatial frequencies, only reducing the data acquisition time after the delay time is reduced to zero. This allows a reduction in total time of the order of 40% while generating comparable spectroscopic image quality.
Battison Williams Dupuis
National Research Council Of Canada
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