Automated impedance adjustment of a multichannel RF coil assembly

US10509085B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Christoph Leussler · Hamburg, DE
• Peter Vernickel · Hamburg, DE

Key dates

• Filing date: Jan 6, 2016
• Grant date: Dec 17, 2019
• Expiry date: Jun 18, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/3415
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A multichannel radio frequency (RF) receive/transmit system (200) for use in an magnetic resonance (MR) imaging system (110) includes an RF coil array (202) with multiple RF coil elements (204) for emission and reception of RF signals. Each RF coil element (204) is provided with a tuning/matching circuit (208) for comparing forward power provided to at least one of the RF coil elements (204) with reflected power at the respective RF coil element (204) of the at least one of the RF coil elements (204), and for tuning the at least one of the RF coil elements (204) based on a comparison of the forward power and the reflected power at least one of the RF coil elements (204). A magnetic resonance (MR) imaging system (110) which includes the multichannel RF receive/transmit system (200) performs magnetic resonance (MR) imaging.