Operation of a transmission device of a magnetic resonance device

US10135549B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Holger Adolf · Zirndorf, DE
• Thomas Benner · Erlangen, DE
• Hans-Peter Fautz · Forchheim, DE
• Joerg Ulrich Fontius · Fairview Avenue, DE
• Rene Gumbrecht · Herzogenaurach, DE

Key dates

• Filing date: Apr 12, 2014
• Grant date: Nov 20, 2018
• Expiry date: Sep 21, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/586
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for operating a transmission device of a magnetic resonance device is provided. In order to actuate coil elements of a radiofrequency coil with different phases, phase differences in a reference plane are taken into consideration. In a first calibration measurement to be performed once for each transmission path, a first phase of a transmitted radiofrequency signal is measured by an internal measuring device installed permanently in the transmission device spaced apart from the reference plane. A second phase of the transmitted radiofrequency signal is measured by a second, external measuring device to be connected to the reference plane for the first calibration measurement. At least one phase of the first phase and the second phase is taken into consideration in the phase-accurate actuating of the coil elements and/or for correcting further measurements with the internal measuring device.