Back to results
US 9,000,766 B2Granted
Radio frequency (RF) coil array for a magnetic resonance imaging system
AssigneeGeneral Electric Company
InventorsDashen Chu, Robert Stormont, Scott Lindsay, Ricardo Mathias, Craig Culver
Life of this patent
Estimating the term…
Abstract
A radio frequency (RF) coil array that includes an RF coil support structure, and a plurality of RF coils coupled to the RF coil support structure, the RF coil support structure configured to enable the plurality of RF coils to be positioned in an underlap configuration and repositioned to an overlap configuration. A medical imaging system and a method of manufacturing the RF coil array are also described herein.
Claims20
A radio frequency (RF) coil array comprising:
- an RF coil support structure;
- and
- a plurality of RF coils coupled to the RF coil support structure, the RF coil support structure configured to enable the plurality of RF coils to be positioned in an underlap configuration and repositioned to an overlap configuration;
- and
- a preamplifier coupled to the RF coils, the preamplifier comprising:
- an amplifier;
- an impedance transformer forming an impedance matching network between the RF coils to transform a coil impedance of the RF coils to a source impedance of at least approximately 100 ohms;
- and
- a field effect transistor (FET), the FET being electrically connected between the impedance transformer and the amplifier, the FET exhibiting a select noise circle for the source impedance.
6 more elements
A magnetic resonance imaging (MRI) system comprising:
- a gantry having a bore extending therethrough;
- and
- a radio frequency (RF) coil array configured to be inserted into the bore, the RF coil array comprising:
- an RF coil support structure;
- and
- a plurality of RF coils coupled to the RF coil support structure, the RF coil support structure configured to enable the plurality of RF coils to be positioned in an underlap configuration and repositioned to an overlap configuration;
- and
- a preamplifier coupled to the RF coils, the preamplifier comprising:
- an amplifier;
- an impedance transformer forming an impedance matching network between the RF coils to transform a coil impedance of the RF coils to a source impedance of at least approximately 100 ohms;
- and
- a field effect transistor (FET), the FET being electrically connected between the impedance transformer and the amplifier, the FET exhibiting a select noise circle for the source impedance.
9 more elements
Dependencies are inferred from the claim text.