Evaluation method for a temporal sequence of x-ray images

US8090176B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Klaus Kinnstaetter · Hirschaid, DE
• Thomas Redel · Baiersdorf, DE

Key dates

• Filing date: Jun 10, 2008
• Grant date: Jan 3, 2012
• Expiry date: Nov 3, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30104
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A computer receives a temporal sequence of x-ray images of an examination region of an examination object. The examination region includes a blood vessel system and tissue supplied with blood. A detection time is assigned in each instance to the x-ray images. The x-ray images correspond locally with one another in terms of pixels and each display a distribution of a contrast agent in the examination region at the respective detection time. The computer determines the temporal course of the temporal derivation of the data values and/or of the average value of the data values of the pixels located in the evaluation region for at least one evaluation region which is standard for all x-ray images. It assigns a type to the evaluation region as a function hereof.