Patent · US Active

Motion artifacts compensation

US7672490B2 · kind B2 · utility

5Cited by

3References

20Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Thomas Kohler · Neuenstadt am Kocher, DE
Roland Proksa · Hamburg, DE
Claas Bontus · Hamburg, DE

Key dates

Filing date	Feb 4, 2005
Grant date	Mar 2, 2010
Priority date	—
Expiry date	Jun 25, 2027

Classification

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

Abstract

Motion is one of the most critical sources of artifacts in helical conebeam CT. By comparing opposite rays corresponding to projection data, the amount of motion may be estimated and, in the following suppression of corresponding motion artifacts may be performed according to an exemplary embodiment of the present invention. The method of motion artifact compensation may be implemented in both approximate reconstruction algorithms and exact reconstruction algorithms. Advantageously, motion during the data acquisition is detected automatically and related motion artifacts may be suppressed adaptively.

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