Method for determining optimized radio-frequency pulse shapes for selective excitation in magnetic resonance spectroscopy and imaging
US5235280A · kind A · utility
8Cited by
4References
7Claims
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Key dates
| Filing date | Aug 5, 1992 |
| Grant date | Aug 10, 1993 |
| Priority date | — |
| Expiry date | Aug 5, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/446
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In magnetic resonance spectroscopy and imaging, it is usually necessary to obtain spectra only from desired, localized regions of an examination subject. This is accomplished by subjecting the examination subject to a selective radio-frequency (RF) pulse. A method for optimizing the pulse shape of such a radio-frequency pulse includes the steps of exciting a spin system with a frequency-selective radio-frequency pulse, reading out the resulting echo signal, cutting off high-frequency signal components of the echo signal using a filter, and employing the filtered echo signal as the optimized radio-frequency pulse shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.