Patent · US Active

Adaptive method for generating artifact-reduced CT image data

US10825208B2 · kind B2 · utility

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22Claims

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Assignee

Siemens Healthcare Limited · DE

Inventors

Ute Feuerlein · Erlangen, DE
Christian Hofmann · Erlangen, DE
Robert Mayer · Brattleboro, US
Rainer Raupach · Heroldsbach, DE
Grzegorz Soza · Heroldsberg, DE

Key dates

Filing date	Apr 26, 2018
Grant date	Nov 3, 2020
Priority date	—
Expiry date	Nov 17, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/10081
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An adaptive method for generating CT image data is described. In the method, projection measurement data of an examination region of an examination object is acquired. Furthermore, uncorrected image data of the examination region is generated. Artifact-affected subregions of the examination region are determined on the basis of at least one part of the uncorrected image data. An artifact-reduced image reconstruction is carried out in the artifact-affected subregions of the examination region. Only artifact-reduced subimage data of the artifact-affected subregions is generated. Finally, artifact-reduced image data of the entire examination region is generated by combining at least one part of the uncorrected image data and the artifact-reduced subimage data. A reconstruction device is also described. Moreover, a computed tomography system is described.

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