System and method for measuring induced radio frequency current using phase contrast magnetic resonance imaging
US9268003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2013 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Mar 9, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/288
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for automatically measuring currents induced on conducting structures positioned in the bore of a magnetic resonance imaging (“MRI”) scanner using a single magnetic resonance image is provided. A conductive structure is positioned within the bore of the MRI scanner during imaging. When the MRI system is transmitting an RF field, a current is induced in the conductive structure. The current creates a magnetic field at the Larmor frequency, which couples to the RF magnetic field in the vicinity of the conductive structure. The modified magnetic field results in an artifact being generated in phase images. The artifact in the phase image is then analyzed to determine the current induced in the conductive structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.