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:
Jan. 28, 2020
Filed:
Sep. 22, 2015
Regents of the University of Minnesota, St. Paul, MN (US);
Nicolas Boulant, Gif-sur-Yvette, FR;
Pierre-Francois Van De Moortele, Minneapolis, MN (US);
Regents of the University of Minnesota, Minneapolis, MN (US);
Commissariat A L'Energie Atomique et Aux Energies Alternatives, Paris, FR;
Abstract
Systems and methods for designing RF pulses using a technique that directly controls temperature rise via a compression model that is based on virtual observation points ('VOPs') are provided. Thermal pre-simulations are first carried out for a given RF exposure time, coil, and subject model in order to obtain complex temperature matrices, after which the compression scheme follows. As one example, the thermal model employed can be Pennes' bio-heat equation. Focusing design constraints on the temperature rise instead of the absolute temperature allows for uncertain parameters to be dropped from the thermal model, making it more robust and less prone to errors. In some embodiments, the algorithm used for RF pulse design is the active-set ('A-S') method.