Doubly resonant high field radio frequency surface coils for magnetic resonance
US8089281B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2008 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Aug 14, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/34007
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radio frequency coil comprises an annular conductor or parallel annular conductors (22, 22c, 22d) configured to support: (i) a uniform electrical current distribution generating a first B1 field (B1,uniform) at a first magnetic resonance frequency directed out of a plane of the annular conductor or conductors; and (ii) a sinusoidal electrical current distribution generating a second B1 field (B1,sine) at a second magnetic resonance frequency directed parallel with the plane of the annular conductor or conductors. A magnetic resonance scanner comprises: a magnet (10) generating a static magnetic field (B0); a magnetic field gradient system (14) configured to superimpose selected magnetic field gradients on the static magnetic field; and said radio frequency coil including said annular conductor or parallel annular conductors (22, 22c, 22d).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.