Eddy current control in NMR imaging systems
US5495171A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1993 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Jan 19, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56518
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A primary field magnet assembly, of the type used in magnetic resonance imaging systems, which has been designed with the capability to suppress eddy currents during magnetic resonance imaging through the use of eddy current suppressing material. In addition, this invention includes the use of high conductivity material to decouple the imaging system radio frequency antennas from their environment, which generally includes the primary field magnet assembly, and can be used to preserve the signal-to-noise performance of the scanner. Such highly conductive material is effective when employed in combination with the primary field magnet assembly described herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.