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. 29, 2009
Filed:
Jun. 04, 2007
Makoto Gohno, Tokyo, JP;
Tetsuya Horiuchi, Tokyo, JP;
Akihiko Nishide, Tokyo, JP;
Akira Hagiwara, Tokyo, JP;
Makoto Gohno, Tokyo, JP;
Tetsuya Horiuchi, Tokyo, JP;
Akihiko Nishide, Tokyo, JP;
Akira Hagiwara, Tokyo, JP;
GE Medical Systems Global Technology Company, LLC, Waukesha, WI (US);
Abstract
The present invention aims to obtain a tomographic image similar in image quality to a tomographic image obtained by executing a scan at X-ray tube current value set by an X-ray automatic exposure function even when the X-ray tube current value set by the X-ray automatic exposure function are not within a standard range of the X-ray tube current values settable at the X-ray tube (). X-ray tube current value supplied to the X-ray tube () are set by the X-ray automatic exposure function. Thereafter, when the X-ray tube current value set by the X-ray automatic exposure function is not within in the standard range of the X-ray tube current value settable at the X-ray tube, the X-ray tube current value at a portion not within the standard range are changed so as to be within the standard range, and the set value of helical pitch is changed so as to correspond to the ratio between the pre-changed x-ray tube current value and the post-changed X-ray tube current value.