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. 29, 2022
Filed:
Oct. 31, 2011
Rainer Graumann, Hoechstadt, DE;
Gerhard Kleinszig, Erlangen, DE;
Yoshito Otake, Baltimore, MD (US);
Jeffrey Siewerdsen, Baltimore, MD (US);
Rainer Graumann, Hoechstadt, DE;
Gerhard Kleinszig, Erlangen, DE;
Yoshito Otake, Baltimore, MD (US);
Jeffrey Siewerdsen, Baltimore, MD (US);
The John Hopkins University, Baltimore, MD (US);
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A method for localization and identification of a structure in a projection image with a system having a known system geometry, includes acquiring a preoperative computer-tomography or CT image of a structure, preprocessing the CT-image to a volume image, acquiring an intraoperative two dimensional or 2D X-ray image, preprocessing the 2D X-ray image to a fix image, estimating an approximate pose of the structure, calculating a digitally reconstructed radiograph or DRR using the volume image, the estimated pose and the system geometry, and calculating a correlation between the generated DRR and the fix image, with a correlation value representing matching between the generated DRR and the fix image. The method significantly decreases the number of wrong-level surgeries and is independent of the surgeon's ability to localize and/or identify a target level in a body.