NMR imaging of metabolites using a multiple quantum excitation sequence
US5111819A · kind A · utility
18Cited by
7References
8Claims
0Family size
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Key dates
| Filing date | Nov 25, 1988 |
| Grant date | May 12, 1992 |
| Priority date | — |
| Expiry date | Nov 25, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multiple quantum excitation pulse sequence for producing NMR signals is optimized for reconstructing images of the distribution and levels of metabolites in vivo using magnetic field gradients. Unwanted signals from water are reduced by application of composite magnetic field gradients, unwanted signals from lipids are reduced by use of a frequency selective pulse optimized to null the lipid signals, and the signal-to-noise ratio of the signals produced by lactate are enhanced by the addition of two 180.degree. excitation pulses to the sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.