Selection method for two contrast media for use in a dual-energy CT examination, contrast media combination and generation of CT images using a contrast media combination and different energy spectra

US9211104B2 · kind B2 · utility

Assignee

• Bayer Intellectual Property GmbH · DE

Inventors

• Bernhard Krauβ · Burgthann, DE
• Hubertus Pietsch · Kleinmachnow, DE

Key dates

• Filing date: May 19, 2008
• Grant date: Dec 15, 2015
• Expiry date: Nov 22, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B6/481
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method is disclosed for selecting two contrast agents to be used in a dual energy CT examination of a patient. In at least one embodiment, the method includes determining the gradient of a connecting line between a first material or a first tissue type and a second material or second tissue type in an HU value diagram of the energy-specific HU values, selecting a first contrast agent with an enhancement gradient which is significantly greater than the determined base gradient, and selecting a second contrast agent, the enhancement of which lies in the significance region of the determined base gradient. A contrast agent combination selected in the fashion is also disclosed in at least one embodiment, as well as the generation of CT images using a contrast agent combination selected in the fashion and using different energy spectra.