Magnetic resonance system and method for frequency calibration of the magnetic resonance system
US9335395B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2012 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Dec 25, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/448
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a method for frequency calibration in a magnetic resonance system in a volume section containing an unknown number of determined substances, the predetermined volume section is excited with RF pulses and subsequent echo signals are recorded at different times and spectral information is determined for each of the echo signals, from which a peak value in the spectral information and an associated relaxation time are determined. Dependent on the relaxation time, a substance is determined for each peak value. A frequency adjustment substance dependent of the magnetic resonance system is then implemented. Multiple peak values in the spectral information of the echo signals can be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.