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:
May. 24, 2016
Filed:
Mar. 05, 2014
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Toshiba Medical Systems Corporation, Otawara-shi, JP;
Adam Petschke, Lake Bluff, IL (US);
Yuexing Zhang, Naperville, IL (US);
Xiaolan Wang, Buffalo Grove, IL (US);
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
TOSHIBA MEDICAL SYSTEMS CORPORATION, Otawara-shi, JP;
Abstract
A method is provided for determining, in a fourth-generation computed tomography (CT) scanner, a positional offset of a center of a ring of fixed energy-discriminating detectors with respect to an iso-center of a third-generation X-ray source/detector system. The method includes obtaining a plurality of offset images, each offset image being obtained from a scan executed with the ring of fixed energy-discriminating detectors positioned in a known offset location with respect to the iso-center; performing a current scan executed with the ring positioned in an unknown offset location with respect to the iso-center, to obtain a current image; calculating, for each offset image, a corresponding error value between the offset image and the current image; and determining the positional offset of the center of the ring to be an offset location corresponding to an offset image having the smallest error value.