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:
Nov. 18, 2014
Filed:
Apr. 01, 2010
Applicants:
Peter Boernert, Hamburg, DE;
Ingmar Graesslin, Boenningstedt, DE;
Kay Nehrke, Ammersbek, DE;
Inventors:
Assignee:
Koninklijke Philips N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 33/48 (2006.01); G01R 33/34 (2006.01); G01R 33/565 (2006.01); G01R 33/28 (2006.01); G01R 33/3415 (2006.01); G01R 33/561 (2006.01); G01R 33/54 (2006.01);
U.S. Cl.
CPC ...
G01R 33/3415 (2013.01); G01R 33/543 (2013.01); G01R 33/5659 (2013.01); G01R 33/288 (2013.01); G01R 33/5612 (2013.01);
Abstract
When generating an MR image using a multi-channel transmit coil arrangement, SAR is reduced by employing a number of different RF pulses in a single scan. Each RF pulse exhibits a different performance and/or accuracy, resulting in different RF pulse-specific SAR values. As a result, the RF pulses differ slightly in actual excitation pattern, Bwaveform and/or k-space trajectory, etc. The average SAR over a single scan is thus reduced compared to a fixed RF pulse, without compromising image quality.