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. 16, 2002
Filed:
Jun. 12, 2000
Applicant:
Inventor:
Tetsuya Horiuchi, Tokyo, JP;
Assignee:
GE Yokogawa Medical Systems, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 2/304 ; A61B 6/03 ;
U.S. Cl.
CPC ...
G01N 2/304 ; A61B 6/03 ;
Abstract
In order to provide a projection data correction method and apparatus that prevents artifact generation in the direction which provides a low count of penetrating radiation, and a radiation tomographic imaging method employing such a projection data correction method and a radiation tomographic imaging apparatus comprising the projection data correction apparatus, projection data Proj is individually corrected by a weighted addition ( ) with an average value ( ) containing the proximate data. The weight SG of the projection data is decreased as the count of the penetrating radiation from which the projection data is derived becomes smaller.