## 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 convention
Fast three-dimensional sodium imaging of human brain
✍ Scribed by Köhler, S
- Publisher
- Springer
- Year
- 2001
- Tongue
- English
- Weight
- 257 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0968-5243
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✦ Synopsis
A three-dimensional sodium imaging technique with a minimum echo time of 0.9 ms is described in a 2.0 Tesla whole-body system. The relaxation behaviour in vivo of sodium was analysed: a fast T 2 * relaxation component between 1.2 and 1.6 ms and a slow T 2 * relaxation component between 7.1 ms and 8.4 ms were quantified in brain tissue of three volunteers. Three-dimensional sodium images of the human brain were acquired in 8.5 min with a resolution of 4.7 × 4.7× 10 mm (0.2 cc voxel size) and a signal-to-noise ratio of 20 in brain tissue and 30 in cerebrospinal fluid.
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