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:
Nov. 25, 2008
Filed:
Apr. 10, 2003
Katsumi Suzuki, Kashiwa, JP;
Katsumi Suzuki, Kashiwa, JP;
Hitachi Medical Corporation, Tokyo, JP;
Abstract
A correction table unit () contains correction tables for correcting output values of image data of the first image, the second image, . . . , the n-th image successively output from an X-ray plane detector () of a radiographic image diagnosis device and having different output rise characteristics. After correction of the image data, the second image data is subtracted from the first image data, . . . , and the n-th image data is subtracted from the first image data by a subtraction unit (). As a result, a subtraction image, i.e., an angiographic image is displayed on display means (). Since the affect of the different rise characteristics of each image data is eliminated, it is possible to obtain an angiographic image having a uniform background brightness and a preferable contrast.