Local gradient coil
US5185576A · kind A · utility
26Cited by
3References
12Claims
0Family size
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Inventors
Key dates
| Filing date | Aug 12, 1991 |
| Grant date | Feb 9, 1993 |
| Priority date | — |
| Expiry date | Aug 12, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3854
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A compact local gradient coil is combined with a local RF coil to provide lower powered, higher strength gradient fields and faster gradient response as is useful in magnetic resonance imaging. Interference between the RF coil and gradient coil is minimized by placement of the gradient coil external to the RF coil and by gradient coils that are axially symmetric and/or have conductors substantially orthogonal to the RF coil conductors. Acoustic noise in these smaller, stronger coils is reduced with ports cut into the coil forms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.