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:
Jan. 28, 2003
Filed:
Nov. 21, 2001
Scott Kenneth Pohlman, Willoughby, OH (US);
Zhongmin Steve Lin, Solon, OH (US);
Koninklijke Philips Electronics, N.V., Eindhoven, NL;
Abstract
A CT scanner ( ) for obtaining a medical diagnostic image of a subject includes a stationary gantry ( ), and a rotating gantry ( ) rotatably supported on the stationary gantry ( ) for rotation about the subject. In a perfusion study time-density curves of voxels of an imaging region are computed. In a low signal identification step ( ), all voxels with low signal are identified. In a clustering step ( ), low signal voxels are clustered together. In a representative determination step ( ) representative time-density curves are computed. In a functional measurement step ( ), measurements are calculated from the combined and uncombined time-density values. In an assigning step ( ), each low signal voxel is assigned the values determined for its group. In a combining step ( ) the results of the low and normal signal voxels are combined to produce a single functional perfusion image.