Patent · US Active

Method, computing unit, CT system and C-arm system for reducing metal artifacts in CT image datasets

US8891885B2 · kind B2 · utility

6Cited by

0References

18Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Marc Kachelriess · Nuremberg, DE
Esther Meyer · Erlangen, DE
Rainer Raupach · Heroldsbach, DE

Key dates

Filing date	Jul 31, 2012
Grant date	Nov 18, 2014
Priority date	—
Expiry date	Jan 29, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/10081
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method is disclosed for reducing metal artifacts in CT image datasets. An embodiment of the method includes reconstructing a first CT image dataset with and a second CT image dataset without metal artifact correction, weighted summation of a high-pass-filtered first and a high-pass-filtered second CT image dataset plus a low-pass-filtered second CT image dataset, wherein the weightings are dependent on the proximity to metal in the CT image datasets. A computing unit, a CT system and a C-arm system designed to execute the method are also disclosed.

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