System for adapting an RF transmission magnetic field for image acquisition

US8686728B2 · kind B2 · utility

Assignee

• Siemens Medical Solutions USA, Inc. · US

Inventors

• Bernd Stoeckel · Erlangen, DE
• Stefan Röll · Seigendorf, DE

Key dates

• Filing date: Jul 21, 2011
• Grant date: Apr 1, 2014
• Expiry date: Oct 21, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/3642
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A system generates a Radio Frequency (RF) magnetic field in an MR imaging unit using an RF transmitting coil for generating a Radio Frequency (RF) magnetic field and multiple RF receiver coils for receiving RF signals for Magnetic Resonance (MR) image data acquisition. An RF transmission coil generates an RF magnetic field. An RF receiver coil receives an RF signal for MR image data acquisition and couples a magnetic field from the RF receiver coil to the RF transmission coil for adaptively altering the RF magnetic field generated by the RF transmission coil to reduce inhomogeneity in the RF magnetic field generated by the RF transmission coil in response to applying an RF pulse to the RF transmission coil. An adjustment processor adjusts characteristics of the RF receiver coil to alter the RF magnetic field generated by the RF transmission coil.