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:
Aug. 17, 2004
Filed:
Mar. 25, 2002
Applicant:
Inventors:
Michael D. Silver, Northbrook, IL (US);
Katsuyuki Taguchi, Tochigi-ken, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61B 6/03 ;
U.S. Cl.
CPC ...
A61B 6/03 ;
Abstract
A method and system for reconstructing an x-ray image from a partial orbit through the use of a “virtual” fan angle. The virtual fan angle is determined based upon the range of angular positions spanned by a source in a CT instrument or a selected smaller angle. Exposure data is obtained and he virtual fan angle is used to weight the exposure data. Image reconstruction can then proceed using the weighted exposure data. The described methods and system also function for data collected over a complete orbit.