Method and X-ray device to determine the value of the tube voltage

US8693636B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Ute Feuerlein · Erlangen, DE
• Sebastian Gehrsitz · Himmelstadt, DE
• Christiane Koch · Eggolsheim, DE
• Gerd Mayer · Bad Boll, DE
• Stefan Muehleck · Forchheim, DE
• Rainer Raupach · Heroldsbach, DE

Key dates

• Filing date: Nov 10, 2011
• Grant date: Apr 8, 2014
• Expiry date: Sep 17, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B6/583
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

In a method and x-ray device to determine the value of an x-ray tube voltage to generate at least one image of defined tissue to be examined, at least one provided parameter is used that establishes or describes the desired image quality; based on the dependency of the contrast of the defined tissue to be examined on the spectrum of the x-ray radiation or on the value of the tube voltage of the x-ray tube. The tube voltage is determined also based on a contrast-to-noise ratio that is constantly maintained under consideration of the aforementioned parameter such that the dose of x-ray radiation applied to the patient is optimally low upon setting the value of the tube voltage at the x-ray tube and the acquisition of at least one x-ray projection of the defined tissue.