Method for determining a three-dimensional image dataset by an X-ray device

US10357208B2 · kind B2 · utility

Assignee

• Siemens Healthcare Limited · DE

Inventors

• Thomas Brunner · Koblenzer Straße, DE
• Bernd Schreiber · Heroldsbach, DE

Key dates

• Filing date: Oct 6, 2017
• Grant date: Jul 23, 2019
• Expiry date: Oct 6, 2037

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B6/501
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method for determining a three-dimensional image dataset by an X-ray device is disclosed herein. The method includes recording projection images of an examination object from a plurality of recording angles, and reconstructing the image dataset from the projection images, wherein, for at least one examined projection image, in each case an interference condition is evaluated the fulfillment of which is dependent upon at least parts of the image data of the (respective) examined projection image and/or upon at least one parameter of the radiation source during the recording of the (respective) examined projection image and indicates that the (respective) examined projection image is a projection image with interference during the recording of which arcing has occurred in the radiation source. The method also includes disregarding at least one projection image with interference, or giving the projection image a lower weighting than all the projection images with no interference, or replacing the projection image with a synthetic projection image.