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. 10, 2001
Filed:
Aug. 04, 1999
Applicant:
Inventors:
Akira Adachi, Otawara, JP;
Toshihiro Rifu, Nasu-gun, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61B 6/00 ;
U.S. Cl.
CPC ...
A61B 6/00 ;
Abstract
In an X-ray computed tomography apparatus, an X-ray tube for generating an X-ray is opposed to a main X-ray detector in order to acquire a projection data set necessary to reconstruct a tomogram. A first sub X-ray detector is arranged at the righthand of the main X-ray detector. A second sub X-ray detector is arranged at the lefthand of the main X-ray detector. Arranging the sub X-ray detectors adjacent to the respective opposite sides of the main X-ray detector enables accurate detection of the shift of an X-ray radiation field, and hence enables the reduction of errors due to the shift.