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, 2008
Filed:
Apr. 24, 2006
Xiaochuan Pan, Chicago, IL (US);
Yu Zou, Naperville, IL (US);
Lifeng Yu, Chicago, IL (US);
Chien-min Kao, Wilmette, IL (US);
Martin King, Chicago, IL (US);
Maryellen Giger, Elmhurst, IL (US);
Dan Xia, Chicago, IL (US);
Howard Halpern, Chicago, IL (US);
Charles Pelizzari, Chicago, IL (US);
Emil Y. Sidky, Chicago, IL (US);
Seungryong Cho, Chicago, IL (US);
Xiaochuan Pan, Chicago, IL (US);
Yu Zou, Naperville, IL (US);
Lifeng Yu, Chicago, IL (US);
Chien-Min Kao, Wilmette, IL (US);
Martin King, Chicago, IL (US);
Maryellen Giger, Elmhurst, IL (US);
Dan Xia, Chicago, IL (US);
Howard Halpern, Chicago, IL (US);
Charles Pelizzari, Chicago, IL (US);
Emil Y. Sidky, Chicago, IL (US);
Seungryong Cho, Chicago, IL (US);
University of Chicago, Chicago, IL (US);
Abstract
A method and apparatus for reconstruction of a region of interest (ROI) for an object using an imaging system is provided. The imaging system may substantially exactly reconstruct the ROI with a straight line trajectory. In the straight line trajectory, the ROI is not bounded or encircled by the actual trajectory of the source (e.g., no chords that are composed from two points on the source trajectory intersect or fill the ROI to be imaged). However, the ROI may be substantially reconstructed by using 'virtual' chords to reconstruct the ROI. The virtual chords are such that no point on the trajectory is included in the virtual chord (such as one that is parallel to the straight line trajectory). These virtual chords may intersect and fill the ROI, thus enabling substantially exact reconstruction. Further, in reconstructing the image, the straight line trajectory may be assumed to be infinite in length.