High field magnetic resonance

US7800368B2 · kind B2 · utility

Assignee

• Regents of the University of Minnesota · US

Inventors

• J. Vaughan · Minneapolis, US
• Pierre-Francois Van de Moortele · Minneapolis, US
• Lance DelaBarre · Sauk Centre, US
• Christopher C. Olson · Minneapolis, US
• Heather Orser · Farmington, US
• Anand Gopinath · Wayzata, US
• Kamil Ugurbil · Minneapolis, US
• Carl J. Snyder · Minneapolis, US
• Gregor Adiany · Minneapolis, US
• Can E. Akgun · Woodbury, US
• Jinfeng Tian · Shanghai, CN
• John Strupp · Stillwater, US
• Peter Andersen · Independence, US
• Xiaoping Wu · Shanghai, CN

Key dates

• Filing date: Feb 17, 2007
• Grant date: Sep 21, 2010
• Expiry date: Oct 2, 2027

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/343
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A magnetic resonance system is disclosed. The system includes a transceiver having a multichannel receiver and a multichannel transmitter, where each channel of the transmitter is configured for independent selection of frequency, phase, time, space, and magnitude, and each channel of the receiver is configured for independent selection of space, time, frequency, phase and gain. The system also includes a magnetic resonance coil having a plurality of current elements, with each element coupled in one to one relation with a channel of the receiver and a channel of the transmitter. The system further includes a processor coupled to the transceiver, such that the processor is configured to execute instructions to control a current in each element and to perform a non-linear algorithm to shim the coil.