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. 09, 2013
Filed:
Nov. 04, 2008
Matthias Bertram, Aachen, DE;
Jens Wiegert, Aachen, DE;
John F. Vesel, Kirtland, OH (US);
David Sowards-emmerd, Sunnyvale, CA (US);
Michael J. Petrilo, Pleasanton, CA (US);
Matthias Bertram, Aachen, DE;
Jens Wiegert, Aachen, DE;
John F. Vesel, Kirtland, OH (US);
David Sowards-Emmerd, Sunnyvale, CA (US);
Michael J. Petrilo, Pleasanton, CA (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
When generating a 3D image of a subject or patient, a cone beam X-ray source () is mounted to a rotatable gantry () opposite an offset flat panel X-ray detector (). A wedge-shaped attenuation filter () of suitable material (e.g., aluminum or the like) is adjustably positioned in the cone beam to selectively attenuate the beam as a function of the shape, size, and density of a volume of interest () through which X-rays pass in order to maintain X-ray intensity or gain at a relatively constant level within a range of acceptable levels.