Apparatus for X-ray imaging for projection radiography and computed tomography, and method for X-ray imaging

US9153411B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Jan Boese · Eckental, DE
• Frank Dennerlein · Forchheim, DE
• Thomas Redel · Baiersdorf, DE

Key dates

• Filing date: Aug 2, 2012
• Grant date: Oct 6, 2015
• Expiry date: Nov 18, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B6/4435
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An X-ray imaging apparatus has at least one X-ray image system rotatable about an examination volume. The X-ray image system is controlled such that during a continuous rotation of the system, at least one 2D projection image is recorded. An image generation facility generates the 2D projection image from the measured data. The X-ray source includes an X-ray focus which can be changed in terms of position, which, during the recording of the 2D projection image, moves counter to the direction of rotation of the X-ray image system such that its spatial position in a fixed coordinate system does not change. The X-ray detector records several 2D partial images, from which the 2D projection image is calculated with the rotational movement of the X-ray detector being at least approximately compensated. The 2D projection images have significantly reduced image blur.