Patent · US Active

Method and device for correction of movement artifacts in a computed tomography image

US9320488B2 · kind B2 · utility

0Cited by

9References

15Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Holger Kunze · Bubenreuth, DE
Yiannis Kyriakou · Spardorf, DE

Key dates

Filing date	Feb 12, 2014
Grant date	Apr 26, 2016
Priority date	—
Expiry date	Mar 17, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06T2211/412
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method for correction of movement artifacts in a computed tomography image that is reconstructed from a plurality of computed tomography projection images is provided. Using all projection images of the plurality of computed tomography projection images, an average position of an examination area of an examination object in the reconstructed image volume is determined by a global optimization method. With the aid of the at least one image volume block that is formed from predeterminable projection images, the movement of the examination area of the examination object in the at least one image volume block is estimated by an optimization method. A corresponding device for correction of movement artifacts in a computed tomography image is also provided.

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