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:
Feb. 23, 2021
Filed:
Jun. 14, 2017
Koninklijke Philips N.v., Eindhoven, NL;
Dirk Schaefer, Hamburg, DE;
Heiner Daerr, Hamburg, DE;
Thomas Koehler, Norderstedt, DE;
Ewald Roessl, Ellerau, DE;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
Present invention relates to devices and methods for determining a calcium content by analyzing cardiac spectral CT data. CT projection data (), obtainable by scanning a cardiac region of a subject using a spectral CT scanning unit, is modelled () by applying a material decomposition algorithm to the projection data to provide a calcium-specific component. Tomographic reconstructions () of the projection data, to provide a first 3D image (), and of the calcium-specific component, to provide a second 3D image (), are performed. The first 3D image () is segmented () to provide an image mask () corresponding to a cardiovascular structure of interest, a part of the second 3D image () is selected () based on the image mask (), and a calcium content is calculated () in the cardiovascular structure of interest based on the selected part of the second 3D image ().