Magnetic resonance rf transmission arrangement and method with commonly fed labeling and excitation antennas

US7944210B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Hubertus Fischer · Bamberg, DE
• Helmut Kess · Erlangen, DE
• Georg Rauh · Zirndorf, DE
• Wilfried Schnell · Forchheim, DE

Key dates

• Filing date: Sep 26, 2008
• Grant date: May 17, 2011
• Expiry date: May 2, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/56366
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A radio-frequency transmission device for a magnetic resonance system to generate magnetic resonance exposures of an examination region of an examination subject, has: a first radio-frequency transmission antenna that emits radio-frequency signals in the examination region, a radio-frequency amplifier that supplies the first radio-frequency transmission antenna, with radio-frequency signals with a predetermined radio-frequency transmission power, and a second radio-frequency transmission antenna fashioned to label a medium flowing in the examination region and/or examination regions via emission of labeling radio-frequency signals, such that the medium can be identified in the generated magnetic resonance exposures of the examination region. The second radio-frequency transmission antenna is coupled with the radio-frequency amplifier to supply the first radio-frequency transmission antenna, such that it likewise supplies the second radio-frequency transmission antenna with radio-frequency signals with a predetermined radio-frequency transmission power for the emission of radio-frequency labeling signals.