Dynamic field camera arrangement for magnetic resonance applications and methods for operating the same
US9791526B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 23, 2012 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Jul 27, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/58
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dynamic field camera arrangement for monitoring electromagnetic field behavior in a spatial region comprises a main magnetic field and a radiofrequency (RF) field limited to a first RF band, particularly in an MRI or NMR apparatus. The arrangement comprises a magnetic field detector set comprising a plurality of low-frequency magnetic field detectors, each one of said magnetic field detectors comprising a magnetic resonance (MR) active substance, means for pulsed MR excitation of said substance and means for receiving an MR signal generated by said substance, wherein said pulsed excitation and said MR detector signal is in a second RF band that does not overlap said first RF band. The MR signal receiving means comprise a first RF filter which suppresses RF signal from said first RF band and transmits RF signal from said second RF band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.