Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ke Sheng1
Dan Nguyen1
Dan Ruan1
Date of Patent
April 27, 2021
1Patent Application Number
157704891
Date Filed
October 21, 2016
1Patent Citations Received
Patent Primary Examiner
Patent abstract
In certain embodiments novel sparse orthogonal collimators (SOCs) for use in radiotherapy are provided. In certain embodiments the SOCs comprise 2 layer 4 bank orthogonal collimators with 2-8 leaves in each of the 4 banks. Instead of using the limited heuristic approach to create jaw-only IMRT, a novel fluence map optimization method is provided based on wavelet decomposition and this method is used for IMRT. An algorithm to simplify the fluence maps with minimal and predictable dose quality compromise is also provided.
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