Computed tomography method, and system

US8977022B2 · kind B2 · utility

Assignee

• GE Sensing & Inspection Technologies GmbH · DE

Inventors

• Eberhard Neuser · Wunstorf, DE
• Alexander Suppes · Garbsen, DE
• Nils Rothe · Hürth, DE
• Michael Hötter · Gehrden, DE
• Anja Frost · Bremen, DE

Key dates

• Filing date: Jul 9, 2010
• Grant date: Mar 10, 2015
• Expiry date: Nov 23, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T7/0012
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A computed tomography method for determining a volumetric representation of a sample comprising reconstruction initial volume data of the sample from x-ray projections of the sample taken by an x-ray system, determining a part of the reconstructed initial volume data to be updated, and executing an iterative update process configured to generate, using an iterative reconstruction method, updated volume data only for the part of the volume data determined to be updated. Determining the part of the sample volume to be updated comprises individually evaluating every single voxel in the reconstructed initial volume data, based on available quality information for the reconstructed initial volume data, whether or not the voxel fulfils a predetermined condition indicating that an update is required for the voxel, and the iterative update process generates the updated volume data only for the voxels which have been determined that an update is required.