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:
Jul. 10, 1990
Filed:
Dec. 20, 1988
Applicant:
Inventors:
Masumi Kawai, Kyoto, JP;
Hiroshi Sawada, Kyoto, JP;
Assignee:
Shimadzu Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05G / ;
U.S. Cl.
CPC ...
378 99 ; 378 62 ; 358111 ;
Abstract
An X-ray photographic equipment includes an assembly consisting of an X-ray tube and an X-ray image pickup means with the body of a subject disposed therebetween. The assembly is moved relative to the body of the subject along the direction of a contrast medium flowing in the body of the subject. A plurality of images are obtained every time the assembly is stopped. Video signals representing these images are processed, and a maximum value holding image and a minimum value holding image are found. A difference therebetween represents an image of the blood vessel, which is free from an artefact caused by positional deviation.