Magnetic lens, method and focus volume imaging MRI
US7193415B2 · kind B2 · utility
2Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2005 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Dec 29, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5604
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A ferromagnetic lens in the presence of a DC magnetic field and a smaller AC magnetic field creates a localized minimum of the magnitude of the magnetic field vector of the combined magnetic field in a volume defined in free space away from the lens referred to as the focus volume. The localized minimum can be nonzero, and can create conditions for spin resonance in the focus volume. The focus volume defined in free space away from the lens can be very small, providing excellent resolution for magnetic resonance imaging, for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.