## Abstract A scheme for the reduction of __T__~2~ signal attenuation effects in three‐dimensional twisted projection imaging is presented. By purposely reducing the sample density at the high spatial frequencies, a considerable reduction in readout time is achieved. The reduction in readout time l
Fast three dimensional sodium imaging
✍ Scribed by Fernando E. Boada; Joseph S. Gillen; Gary X. Shen; Sam Y Chang; Keith R. Thulborn
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 997 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0740-3194
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✦ Synopsis
Abstract
An efficient scheme for fast three dimensional acquisition of sodium MR images is described. This scheme relies on the use of three dimensional k‐space trajectories with constant sample density to achieve significant (60–70%) reductions in total data acquisition time over conventional projection imaging schemes. The performance of this data acquisition scheme is demonstrated with acquisition of sodium data sets on phantoms and normal human volunteers at 1.5 and 3.0 Tesla. The experimental results demonstrate that high quality three dimensional sodium images (0.2 cc voxel size, 10:1 signal‐to‐noise ratio) can be acquired at clinical field strengths (1.5 Tesla) in under 10 min.
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