Method for the determination of dual energy image data records and X-ray facility

US9830685B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Frank Dennerlein · Forchheim, DE
• Mathias Hoernig · Möhrendorf, DE

Key dates

• Filing date: Aug 14, 2013
• Grant date: Nov 28, 2017
• Expiry date: Feb 26, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2211/408
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method for determining at least one three-dimensional image data record of a target area from two sets of projection images recorded with x-ray spectra using different energy maxima. A first set of projection images is recorded via a first X-ray spectrum and different first projection directions and a second set of projection images via a second X-ray spectrum and different second projection directions which differ at least partially from the first projection directions. A three-dimensional anatomy image data record is reconstructed from the first and the second projection images. A three-dimensional spectral image data record is reconstructed by a weighted combination of a first three-dimensional reconstruction image data record reconstructed from the first projection images, and a second three-dimensional reconstruction image data record reconstructed from the second projection images. The anatomy image data record and the spectral image data record are displayed.