US 12,442,881 B2
Equilization for magnetic resonance imaging (MRI) signals
Rodrigo Calderon Rico, Gainesville, FL (US); Alton Keel, Gainesville, FL (US); Tracy Allyn Wynn, Gainesville, FL (US); Arne Reykowski, Newberry, FL (US); and Scott Bradley King, Gainsville, FL (US)
Assigned to Koninklijke Philips N.V., Eindhoven (NL)
Appl. No. 18/279,242
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Feb. 23, 2022, PCT No. PCT/EP2022/054558
§ 371(c)(1), (2) Date Aug. 29, 2023,
PCT Pub. No. WO2022/184526, PCT Pub. Date Sep. 9, 2022.
Claims priority of provisional application 63/156,379, filed on Mar. 4, 2021.
Prior Publication US 2024/0133989 A1, Apr. 25, 2024
Prior Publication US 2024/0230814 A9, Jul. 11, 2024
Int. Cl. G01R 33/58 (2006.01); G01R 33/36 (2006.01)
CPC G01R 33/583 (2013.01) [G01R 33/3621 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A magnetic resonance (MR) system, comprising:
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 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; and
equalizer electronics 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.