Koninklijke Philips Corporation N.v.

Alton Keel

Arne Reykowski

Rodrigo Calderon Rico

Scott Bradley King

Timothy Ortiz

Paul Franz Redder

Tracy Allyn Wynn

A magnetic resonance (MR) system includes an MR receive channel () including: an MR coil element () configured to receive MR signals in an MR frequency band; an electronic signal processing chain () configured to process the MR signals received by the MR coil element to produce processed MR signals, wherein the electronic signal processing chain includes an equalization filter (); and a signal injector (D) configured to input a reference radio frequency (RF) signal in the MR frequency band to the signal processing chain, wherein the signal processing chain processes the reference RF signal to generate a processed reference RF signal. Equalizer electronics () are configured to adjust the equalization filter based at least on the processed reference RF signal such that the MR receive channel has a flat frequency response over the MR frequency band.

Equilization for magnetic resonance imaging (MRI) signals

An electronic device () includes an electronic component (); at least one electrically conductive loop or winding () disposed around the electronic component; and an electronic controller () configured to: obtain () a magnetic field direction from a received ambient magnetic field measurement signal; determine () at least one magnetic field shim current based on the obtained magnetic field direction; and energize () the at least one electrically conductive loop or winding to flow the determined at least one magnetic field shim current.

Magnetic field (B) artifact reduction throught active shimming

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Gainesville, FL, United States of America

Alton Keel