NDLI: A Computational Investigation for Metal Artifact Reduction in Cone-beam X-Ray Computed Tomography

Content Provider	IEEE Xplore Digital Library
Author	Aootaphao, S. Pintavirooj, C. Sotthivirat, S.
Copyright Year	2006
Description	Author affiliation: Dept. of Electron., King Mongkut's Inst. of Technol., Bangkok (Aootaphao, S.; Pintavirooj, C.)
Abstract	Due to low radiation dose, cone-beam computed tomography is growing in importance. In image reconstruction, a stack of cross-sectional images can be reconstructed from a series of X-ray radiographs, served as projections. The presence of metals in the object, however, has deteriorated the quality of the reconstructed image as well as the 3D modeling results. The consequence of metal artifact can be demonstrated through the occurrence of streak effects on the reconstruction volume. In this paper, the attempt has been conducted to solve the problem of metal artifacts. The proposed technique is achieved by segmenting the metal shadowgram and filling it with the averaged intensity prior to reconstruction. The result of computer simulation shows the potential of such method for clinical use
Sponsorship	ECTI, Thailand NECTEC, Thailand King Mongkut's Inst. of Tech., Thailand IEEE Circuits and Syst. Soc
Starting Page	1191
Ending Page	1194
File Size	2922406
Page Count	4
File Format	PDF
ISBN	0780397401
DOI	10.1109/ISCIT.2006.339968
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-18
Publisher Place	Thailand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	computed tomography Computational modeling Instruments metal artifact reduction X-ray imaging Image reconstruction Geometry Radiography Image segmentation Computed tomography Communications technology Positron emission tomography filtered backprojection
Content Type	Text
Resource Type	Article

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