Reduction of metal streak artifacts in x-ray computed tomography using a transmission maximum a posteriori algorithm

被引：185

作者：

De Man, B ^{[1
]}

Nuyts, J

Dupont, P

Marchal, G

Suetens, P

机构：

[1] Katholieke Univ Leuven, PSI, ESAT, GHB,UZ, B-3000 Louvain, Belgium

[2] Katholieke Univ Leuven, GHB, UZ, Dept Nucl Med, B-3000 Louvain, Belgium

[3] Katholieke Univ Leuven, GHB, UZ, Dept Radiol, B-3000 Louvain, Belgium

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2000年 / 47卷 / 03期

关键词：

D O I：

10.1109/23.856534

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A maximum a posteriori algorithm for reduction of metal streak artifacts in x-ray computed tomography is presented. The algorithm uses a Markov random field smoothness prior and applies increased sampling in the reconstructed image. Good results are obtained for simulations and phantom measurements: streak artifacts are reduced while small, line-shaped details are preserved.

引用

页码：977 / 981

页数：5

共 24 条

[11] Bayesian reconstruction of PET images: Methodology and performance analysis [J].

Mumcuoglu, EU ;

Leahy, RM ;

Cherry, SR .

PHYSICS IN MEDICINE AND BIOLOGY, 1996, 41 (09) :1777-1807

[12] Iterative reconstruction for helical CT: a simulation study [J].

Nuyts, J ;

De Man, B ;

Dupont, P ;

Defrise, M ;

Suetens, P ;

Mortelmans, L .

PHYSICS IN MEDICINE AND BIOLOGY, 1998, 43 (04) :729-737

[13] Simultaneous maximum a posteriori reconstruction of attenuation and activity distributions from emission sinograms [J].

Nuyts, J ;

Dupont, P ;

Stroobants, S ;

Benninck, R ;

Mortelmans, L ;

Suetens, P .

IEEE TRANSACTIONS ON MEDICAL IMAGING, 1999, 18 (05) :393-403

[14]

NUYTS J, 1997, 2 IEEE WORKSH CMP CA, P237

[15]

Oppenheim B.E., 1977, RECONSTRUCTION TOMOG, P155

[16]

RAJGOPAL K, 1997, MED IMAGING SYSTEMS, P281

[17]

Robertson D D, 1989, J Arthroplasty, V4, P271, DOI 10.1016/S0883-5403(89)80024-5

[18] EVALUATION OF CT TECHNIQUES FOR REDUCING ARTIFACTS IN THE PRESENCE OF METALLIC ORTHOPEDIC IMPLANTS [J].

ROBERTSON, DD ;

WEISS, PJ ;

FISHMAN, EK ;

MAGID, D ;

WALKER, PS .

JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY, 1988, 12 (02) :236-241

[19] Total hip prosthesis metal-artifact suppression using iterative deblurring reconstruction [J].

Robertson, DD ;

Yuan, J ;

Wang, G ;

Vannier, MW .

JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY, 1997, 21 (02) :293-298

[20] CT BONE DENSITOMETRY OF THE ANCHORAGE OF ARTIFICIAL KNEE JOINTS [J].

SEITZ, P ;

RUEGSEGGER, P .

JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY, 1985, 9 (03) :621-622

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