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:
Mar. 28, 1978
Filed:
Dec. 30, 1976
Applicant:
Inventor:
Robert Justin Froggatt, Southall, EN;
Assignee:
EMI Limited, Hayes, EN;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ; G01N / ; H05G / ;
U.S. Cl.
CPC ...
250360 ; 2504 / ;
Abstract
A computerized tomographic apparatus is disclosed, as well as a method of operating such apparatus. In circumstances where collimation between the body under examination and the radiation-sensitive detector means is difficult to apply, errors in evaluated absorption coefficients for locations distributed over a cross-sectional slice of the body due to scatter within the slice are reduced by producing a first estimate of the distribution of said absorption coefficients, using this estimate to obtain an indication of the amount of scatter likely to arise from the various locations when irradiated along different paths and using such indication to effect scatter compensation.