David K Keren

US Patent:

7688070, Mar 30, 2010

Filed:

Nov 18, 2003

Appl. No.:

10/707045

Inventors:

Daniel J. Weyers - Brookfield WI, US
David Keren - Milwaukee WI, US
Kevin Kinsey - Waukesha WI, US
Ed B. Boskamp - Menomonee WI, US

Assignee:

General Electric Company - Schnectady NY

International Classification:

G01V 3/00

US Classification:

324318, 324322, 324306, 324309, 324307, 324314, 600407, 600410, 600422, 600421

Abstract:

An imaging coil () includes multiple end rings (). A center ring () extends parallel to and is coupled between the end rings (). Multiple legs () are coupled between the end rings () and the center ring (). The end rings () may have a first radius (R) that is greater than a second radius (R) of the center ring (). The imaging coil () may include more than 16 legs. The imaging coil () may include multiple capacitor groupings () coupled along the end rings (), each capacitor grouping () has multiple capacitors () with a coverage area width (W) greater than 5. 0 cm. The center ring () may be coupled to a ground reference () and has low impedance such that the center ring () is effectively shorted to the ground reference ().

US Patent:

20060186883, Aug 24, 2006

Filed:

Feb 24, 2005

Appl. No.:

10/906551

Inventors:

Daniel Lynch - Nashotah WI, US
Peter Thomas - Hartland WI, US
Deependra Gangakhedkar - Waukesha WI, US
David Keren - Milwaukee WI, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

G01V 3/00

US Classification:

324313000

Abstract:

A method for tuning a radio frequency coil of a magnetic resonance imaging system includes disposing a plurality of probes at selected portions of a fixture, disposing the fixture proximate to the radio frequency coil at a first location, and obtaining a first set of measurements of an output of the radio frequency coil using an automated test equipment.