X-ray arrangement and x-ray contrast process for imaging an object under examination that contains at least one radiopaque element as well as use of the x-ray arrangement

US7672431B2 · kind B2 · utility

Assignee

• Bayer Schering Pharma AG · DE

Inventors

• Ruediger Lawaczeck · Berlin, DE
• Andreas Muehler · Sarasota, US
• Hanns-Joachim Weinmann · Berlin, DE

Key dates

• Filing date: Oct 12, 2004
• Grant date: Mar 2, 2010
• Expiry date: Oct 12, 2024

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B6/505
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

To increase the contrast in the imaging in an object under examination that contains at least one radiopaque element, an arrangement that has the following features is used: a) at least one essentially polychromatic x-ray radiation source that emits x-ray radiation, b) at least one energy-dispersive detector, with which the intensity of the x-ray radiation that gets through the object under examination is detectable, c) at least one correlation unit, with which the intensity of the detected x-ray radiation from a pixel of the object under examination with a first energy E1 can be correlated with the intensity of the detected x-ray radiation from the same pixel with a second energy E2, d) at least one output unit for visualizing the object under examination from the pixel signals that are obtained by correlation of the intensities.