Method and device for producing a tomosynthetic 3D X-ray image

US8363050B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Jasmina Ludwig · Munich, DE
• Thomas Mertelmeier · Erlangen, DE

Key dates

• Filing date: Feb 8, 2007
• Grant date: Jan 29, 2013
• Expiry date: Apr 23, 2029

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B6/469
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

In a method and device for generating a tomosynthetic 3D x-ray image, a number of digital x-ray images of an examination subject are acquired at respectively different projection angles, within a limited angle range, using an x-ray source and a digital x-ray detector. At an initial position for a selected projection angle, a spatially-fixed reference point is projected onto a partial region of the acquisition surface of the x-ray detector. For each further projection angle, a corresponding partial region on the acquisition surface is automatically determined. The tomosynthetic 3D image is reconstruction exclusively using image data from the respective partial regions.