The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 2011
Filed:
Dec. 11, 2008
Wilfried Schnell, Forchheim, DE;
Markus Vester, Nuremberg, DE;
Wilfried Schnell, Forchheim, DE;
Markus Vester, Nuremberg, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A magnetic resonance system has multiple individual transmission antennas each charged with a transmission current to emit an individual excitation field in an examination volume to excite magnetic resonances in a subject, producing a total excitation field as a superimposition of the individual excitation fields. A determination device provided with a spatial distribution of an absorption rate of the examination subject, determines a combination of amplitudes and phase positions for the transmission currents relative to one another such that a locally absorbed power at a first point of the examination subject relative to a locally absorbed power at a second point of the examination subject satisfies a relative condition. The determined combination of amplitudes and phase positions are communicated to a control device, which charges the transmission antennas with transmission currents having the communicated phase positions and amplitudes scaled with a uniform scaling factor for all transmission currents relative to the communicated amplitudes.