Patent · US Active

Method for acquiring a 3D image dataset freed of traces of a metal object

US8768045B2 · kind B2 · utility

2Cited by

7References

8Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Christopher Rohkohl · Hattingen, DE
Bernhard Scholz · Heroldsbach, DE

Key dates

Filing date	Mar 15, 2012
Grant date	Jul 1, 2014
Priority date	—
Expiry date	May 11, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG06T2211/424
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An interpolation of data values is performed during the acquisition of a 3D image dataset which is free of traces of a metal object imaged in the underlying 2D image datasets. A target function is defined into which data values of the 3D image dataset that are dependent on said substitute data values are incorporated following preprocessing. The substitute data values are then varied iteratively until the value of the target function satisfies a predetermined criterion. Residual artifacts that still persist following the interpolation can thus be effectively reduced.

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