Patent · US Active

On-coil switched mode amplifier for parallel transmission in MRI

US7671595B2 · kind B2 · utility

11Cited by

2References

19Claims

0Family size

Assignee

CASE WESTERN RESERVE UNIVERSITY · US

Inventors

Mark A. Griswold · Shaker Heights, US
Jeremiah A. Heilman · University Heights, US
Matthew Riffe · Cincinnati, US
Oliver Heid · Erlangen, DE
Markus Vester · Koblenzer Straße, DE

Key dates

Filing date	Mar 7, 2008
Grant date	Mar 2, 2010
Priority date	—
Expiry date	Aug 15, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/3614
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Example systems, apparatus, circuits, and so on described herein concern parallel transmission in MRI. One example apparatus includes at least two field effect transistors (FETs) that are connected by a coil that includes an LC (inductance-capacitance) leg. The apparatus includes a controller that inputs a digital signal to the FETs to control the production of an output analog radio frequency (RF) signal. The LC leg is to selectively alter the output analog RF signal and the analog RF signal is used in parallel magnetic resonance imaging (MRI) transmission.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.