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:
Oct. 28, 2014
Filed:
Aug. 07, 2007
Euan Thomson, Los Gatos, CA (US);
John Robinson Dooley, Castro Valley, CA (US);
Gopinath Kuduvalli, San Jose, CA (US);
James Wang, Palo Alto, CA (US);
Eric Earnst, Saratoga, CA (US);
Chris Raanes, Portola Valley, CA (US);
Euan Thomson, Los Gatos, CA (US);
John Robinson Dooley, Castro Valley, CA (US);
Gopinath Kuduvalli, San Jose, CA (US);
James Wang, Palo Alto, CA (US);
Eric Earnst, Saratoga, CA (US);
Chris Raanes, Portola Valley, CA (US);
Accuray Inc., Sunnyvale, CA (US);
Abstract
Treatment targets such as tumors or lesions, located within an anatomical region that undergoes motion (which may be periodic with cycle P), are dynamically tracked. A 4D mathematical model is established for the non-rigid motion and deformation of the anatomical region, from a set of CT or other 3D images. The 4D mathematical model relates the 3D locations of part(s) of the anatomical region with the targets being tracked, as a function of the position in time within P. Using fiducial-less non-rigid image registration between pre-operative DRRs and intra-operative x-ray images, the absolute position of the target and/or other part(s) of the anatomical region is determined. The cycle P is determined using motion sensors such as surface markers. The radiation beams are delivered using: 1) the results of non-rigid image registration; 2) the 4D model; and 3) the position in time within P.