Computer-implemented method for evaluating an x-ray image showing a contrast agent, evaluation facility, x-ray facility, computer program and electronically readable data carrier

US12171604B2 · kind B2 · utility

Assignee

• Siemens Healthineers AG · DE

Inventors

• Anke Siebert · Forchheim, DE
• Philipp Bernhardt · Forchheim, DE
• Bernhard Christian Meyer · Hannover, DE
• Thomas Werncke · Wandlitz, DE

Key dates

• Filing date: Jun 28, 2023
• Grant date: Dec 24, 2024
• Expiry date: Jun 28, 2043

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30172
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A computer-implemented method for evaluating an X-ray image includes: segmenting the hollow organ structure in the X-ray image; determining center lines and edge boundaries of the segmented hollow organ structure and ascertaining a diameter of each hollow organ along its center line; ascertaining an image absorption value, describing the increase in absorption due to a contrast agent in the hollow organ compared to surroundings of the hollow organ, along the center line of each hollow organ; ascertaining, for each image absorption value, a theoretical computing absorption value expected when the hollow organ is completely filled with the contrast agent, by using at least the diameter and contrast agent information; determining a filling level along the center line of each hollow organ of the hollow organ structure by comparing the image absorption value with the computing absorption value; and outputting filling level information including the filling levels.