Patent · US Active

Motion visualisation in angiographic images

US9025840B2 · kind B2 · utility

5Cited by

3References

20Claims

0Family size

Assignee

KONINIKLIJKE PHILIPS N.V. · NL

Inventors

Irina Waechter-Stehle · Hamburg, DE
Alexandra Groth · Hamburg, DE
Ronaldus Petrus Johannes Hermans · Eindhoven, NL
Matthias Bertram · Aachen, DE

Key dates

Filing date	Mar 4, 2011
Grant date	May 5, 2015
Priority date	—
Expiry date	Aug 20, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30101
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method and an apparatus for motion visualization of a moving object in angiographic images are described. In a preferred embodiment of the method, first a mask image of the object of interest is acquired and a sequence of angiographic images of the object in different phases of motion of the object is acquired. Then, a first angiographic subtraction image and at least a second angiographic subtraction image are generated by subtracting the angiographic images from the mask image. Subsequently, a twice subtracted image is generated by subtracting the first angiographic subtraction image from the second angiographic subtraction image. In this way a double subtraction, i.e. a twice subtracted angiography is performed, to facilitate the assessment of the motion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.