Optimized orthogonal gradient technique for fast quantitative diffusion MRI on a clinical scanner
US6288540A · kind A · utility
27Cited by
4References
14Claims
0Family size
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Key dates
| Filing date | May 19, 2000 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | May 19, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56341
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A technique for MRI or the like employs optimized orthogonal gradients. For a device having a peak physical magnetic field gradient strength G.sub.0, the gradients are optimized if, in physical space, one gradient has a value -0.5G.sub.0 while the two gradients orthogonal thereto have the value G.sub.0. That is equivalent to an optimized orthogonal gradient space in which one gradient has a value 1.5G.sub.0 while the two gradients orthogonal thereto have the value zero. The gradients are cycled over a sequence of six gradient pulses to provide enough data to calculate the diffusion tensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.