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:
Dec. 05, 2006
Filed:
Sep. 02, 2005
Yoshihiro Ikeda, Tochigi-ken, JP;
Masahiro Ozaki, Tochigi-ken, JP;
Yoshihiro Ikeda, Tochigi-ken, JP;
Masahiro Ozaki, Tochigi-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An X-ray CT (computed tomography) apparatus is disclosed. The X-ray CT apparatus include an X-ray supply unit performing low-dose X-ray scanning and high-dose X-ray scanning for a patient in which a contrast medium has been injected. The collected X-ray projection data are reconstructed to generate image data for low-dose X-ray scanning and high-dose X-ray scanning. In the low-dose X-ray scanning that proceed the high-dose X-ray scanning, plural images are obtained in succession, in which ROIs (regions of interest) are set in given positions. A CT value calculating unit calculates the CT values in the ROIs in succession, and the timing at which the high-dose X-ray scanning is started is determined on the basis of the changes of CT values with time. And blood-flow information is calculated by using the image data obtained with low-dose X-ray scanning and high-dose X-ray scanning.