Image processing of four-dimensional angiography data set

US10223820B2 · kind B2 · utility

Assignee

• Siemens Healthcare Limited · DE

Inventors

• Markus Kowarschik · Koblenzer Straße, DE
• Sonja Gehrisch · Nürnberg, DE
• Christopher Rohkohl · Hattingen, DE

Key dates

• Filing date: Jan 19, 2018
• Grant date: Mar 5, 2019
• Expiry date: Jan 19, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2211/404
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method is provided for image processing an angiography data set of a capture region of interest of a patient's vascular system. The method includes establishing a static time parameter set from the angiography data set, wherein the static time parameter set includes time parameters and characterizes the time profile of the contrast agent concentration for picture elements of the capture region described in the image data subsets; establishing a series of mask data sets by picture element-by-picture element application of a window function having a window width of greater than zero; selecting a subinterval in the parameter space covered by the time parameters for each instant of the series to the static time parameter set; and establishing a series of static display data sets by applying the mask data sets to a static vessel data set, which shows a vascular system perfused by the contrast agent in the capture region and which underlies or is derived from the angiography data set.