Composite MRI antenna with reduced stray capacitance
US6028429A · kind A · utility
28Cited by
27References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1997 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Jul 17, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/34061
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An antenna system for a magnetic resonance imaging apparatus has an active coil connected between a transmitter or receiver and ground and also has an isolated loop coil which is not conductively connected to ground. The isolated loop coil preferably overlies the electrically conductive pole surface of the field magnet. The isolated loop coil is inductively coupled to the active coil. The assembly has relatively low parasitic capacitance to ground and hence can be tuned to the resonant frequencies required for high field strength imaging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.