Method for determining a relative position of an object in relation to an x-ray imaging apparatus

US11116469B2 · kind B2 · utility

Assignee

• Siemens Healthcare Limited · DE

Inventors

• Peter Bartl · Erlangen, DE
• Robert Brauweiler · Baiersdorf, DE

Key dates

• Filing date: Feb 5, 2020
• Grant date: Sep 14, 2021
• Expiry date: Feb 5, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B6/588
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method is provided for determining a relative position of an object in relation to an x-ray imaging apparatus for creating an x-ray and a recorded image. The method includes bringing an object in a ray path of an x-ray into a first position. In a first recorded image, at least one defined geometry in and/or on the object is imaged. A measure for a change in the first focus point towards a second focus point is undertaken at the x-ray source. In the second recorded image, the at least one defined geometry is imaged. A distance from the object to the x-ray source and/or to the x-ray detector is determined based on the change in the focus point, as well as on the basis of the images of the at least one defined geometry in the first and the second recorded image.