Stabilized fast spin echo NMR pulse sequence with improved slice selection
US5345176A · kind A · utility
22Cited by
9References
3Claims
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Key dates
| Filing date | Jul 15, 1993 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | Jul 15, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/561
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fast spin echo NMR pulse sequence is modified to stabilize the magnitude of early NMR echo signals produced during each shot. Stabilization is accomplished by modifying the amplitude of the nutation angle produced in the spins by the corresponding RF refocusing pulses. This stabilization is relaxed for the first RF refocusing pulse so that its maximum RF power can be reduced relative to that of the other RF refocusing pulses and the bandwidth thereof increased to improve the slice select profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.