Magnetic resonance imaging device for operation in external static magnetic fields
US6377048B1 · kind B1 · utility
26Cited by
9References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2000 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Nov 8, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3873
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An MRI system is presented utilizing a magnetic assembly of a kind which, when accommodated within a primary static reasonably homogeneous magnetic field created by the MRI system affects the static magnetic field to cause creation of a region of substantial non-homogeneity of the static magnetic field in the vicinity of the magnetic assembly. By this, a local static field gradient is created. The magnetic assembly comprises a passive magnetic element, which deforms a pattern of the static magnetic field, while not being a magnetic field source by to itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.