Magnetic resonance imaging (MRI) coil with integrated decoupling
US9933501B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2014 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Dec 24, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3657
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Example magnetic resonance imaging (MRI) radio frequency (RF) coils are described. An MRI RF coil may include an LC circuit and an integrated decoupling circuit. The integrated decoupling circuit may include a wire or other conductor that is connected to the LC circuit and that is positioned within a defined distance of the LC circuit. The integrated decoupling circuit may include a PIN diode and a tunable element. The tunable element may be tunable with respect to resistance, capacitance, or inductance, and thus may control, at least in part, the frequency at which the LC circuit resonates during RF transmission. The example MRI RF coil has more than one point of high impedance, which facilitates reducing heating and operational issues associated with conventional coils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.