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:
Dec. 28, 2004
Filed:
Oct. 15, 2002
Gordon D. DeMeester, Wickliffe, OH (US);
Michael A. Morich, Mentor, OH (US);
John V. M. McGinley, London, GB;
Gerardus B. J. Mulder, Best, NL;
Koninklijke Philips Electronics, N.V., Eindhoven, NL;
Abstract
In a method for aligning a magnetic field-modifying structure ( ) in a magnet bore ( ) of a magnetic resonance imaging scanner ( ), a reference magnetic field map of the magnet bore ( ) is measured without the magnetic field-modifying structure ( ) inserted. The magnetic field-modifying structure ( ) is inserted into the magnet bore ( ). A second magnetic field map of the magnetic bore ( ) is measured with the magnetic field-modifying structure ( ) inserted. At least one odd harmonic component of the first and second magnetic field maps is extracted. The magnetic field-modifying structure ( ) is aligned in the magnet bore ( ) based on a comparison of the odd harmonic component of the first and second magnetic field maps.