Method for increasing updating rate of reconstruction of a current three-dimensional image dataset of an object during a monitoring process and X-ray device

US8848999B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Jan Boese · Eckental, DE
• Frank Dennerlein · Forchheim, DE

Key dates

• Filing date: Apr 26, 2011
• Grant date: Sep 30, 2014
• Expiry date: Mar 22, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01J2235/068
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method for reconstruction of an actual three-dimensional image dataset of an object during a monitoring process is proposed. Two-dimensional X-ray projection images which correspond to a recording geometry are continuously recorded from different projection angles. The three-dimensional image dataset are reconstructed from a first number of these projection images, especially by a back projection method. The proportion of the oldest projection image contained in the current three-dimensional image dataset is removed from the three-dimensional image dataset and the proportion of the actual projection image is inserted in the three-dimensional image dataset after each recording of the actual projection image.