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. 18, 2017
Filed:
Jun. 08, 2011
Eric G. Hawman, Schaumburg, IL (US);
Robert Kasper, Chicago, IL (US);
Eric G. Hawman, Schaumburg, IL (US);
Robert Kasper, Chicago, IL (US);
Siemens Medical Solutions USA, Inc., Malvern, PA (US);
Abstract
A system and method are disclosed for obtaining pointing directions for every channel of a collimator which can then be used during the image reconstruction process to more accurately estimate the direction from which radiation has been received. The disclosed system and method provide for photographic measurement and analysis of individual collimator channel to determine the pointing directions for every channel in the collimator. This information is obtained by photographing the front and back sides of the collimator, and analyzing the digital image data to obtain the pointing angle of each channel. The resulting information, referred to as a 'vector map' is included in the firmware of the collimator so that it can be called on during the projection and back-projection steps of the algorithm.