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. 08, 2006
Filed:
May. 20, 2004
Xiaoye Wu, Rexford, NY (US);
Neil Barry Bromberg, Milwaukee, WI (US);
Alexander Kolker, Milwaukee, WI (US);
Piero Ugo Simoni, Greenfield, WI (US);
Thomas Louis Toth, Brookfield, WI (US);
Xiaoye Wu, Rexford, NY (US);
Neil Barry Bromberg, Milwaukee, WI (US);
Alexander Kolker, Milwaukee, WI (US);
Piero Ugo Simoni, Greenfield, WI (US);
Thomas Louis Toth, Brookfield, WI (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method for calibrating a computed tomographic imaging apparatus having a gantry, a radiation source operable at a plurality of kVp's, and a detector array having a plurality of detector elements includes using a system detection function to estimate signals of each detector element that would have been detected through air and through a given thickness of water to determine estimated datasets. The estimated datasets are used to determine data pair sets each comprising a normalized water projection value and an ideal projection value for each detector element. The method further includes determining and storing a representation of a mapping function of the normalized water projections values to the ideal projection values in a memory of the computed tomographic imaging apparatus as a spectral calibration of the computed tomographic imaging apparatus.