Patent · US Active

Method and circuit arrangement for operating multi-channel transmit/recieve antenna devices

US8099059B2 · kind B2 · utility

5Cited by

13References

12Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Ingmar Graesslin · Wenningstedt-Braderup (Sylt), DE
Peter Vernickel · Hamburg, DE
Christoph Leussler · Hamburg, DE

Key dates

Filing date	Apr 27, 2006
Grant date	Jan 17, 2012
Priority date	—
Expiry date	Aug 19, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04W52/367
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A multi-channel transmit/receive antenna device or arrangement for use in a magnetic resonance imaging (MRI) system includes a power monitoring unit. To ensure that a specific absorption rate of a patient is not exceeded, transmitted power levels and reflected power levels on channels for a plurality of coils and/or coil segments are monitored. Each coil/coil segment is supplied with RF transmit signals with different amplitudes and/or phases and/or waveforms and/or power levels.

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