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:
Apr. 01, 2003
Filed:
Nov. 30, 2001
Applicant:
Inventors:
Per-Erik Danielsson, Linkoeping, SE;
Henrik Valdemar Turbell, Linkoeping, SE;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 6/03 ;
U.S. Cl.
CPC ...
A61B 6/03 ;
Abstract
The invention relates to a computed tomography method in which the summing operation required for filtered backprojection is performed in two steps, filtering being performed only after the first summing step. This method is preferably performed for the points on a surface, which is defined by parallel rays, which are situated in parallel planes and link oppositely situated segments of the helix.