Metal Artefact Correction Algorithm based-on DSAT Technique for CT Images

被引：0

作者：

Osman, N. D. ^{[1
]}

Salikin, M. S. ^{[2
]}

Saripan, M. I. ^{[3
]}

Aziz, M. Z. A. ^{[1
]}

Daud, N. M. ^{[4
]}

机构：

[1] Univ Sains Malaysia, Adv Med & Dent Inst, Radiol & Oncol Cluster, George Town 13200, Malaysia

[2] Univ Teknol MARA, Fac Hlth Sci, Dept Med Imaging, Puncak Alam, Malaysia

[3] Univ Putra Malaysia, Fac Engn, Dept Comp & Commun Syst Engn, Serdang, Malaysia

[4] Hosp Univ Sains Malaysia, Dept Radiol, Kubang Kerian, Malaysia

来源：

2014 IEEE CONFERENCE ON BIOMEDICAL ENGINEERING AND SCIENCES (IECBES) | 2014年

关键词：

artefact; computed tomography; image segmentation; HIP PROSTHESES; REDUCTION;

D O I：

暂无

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

This paper presents a correction algorithm for metal artefacts in CT images using a novel technique known as dual-step adaptive thresholding (DSAT). The proposed artefact correction algorithm was applied to selected artefactual phantom and clinical CT images. The missing projection data due to metal is detected and extracted by double-thresholding technique. The DSAT-based algorithm allows significant reduction of the artefact and preserves most of the anatomical structures in the corrected CT images.

引用

页码：324 / 327

页数：4

共 17 条

[1]

Abdoli M., 2009, 3 INT C BIOINF BIOM

[2] Metal artifact reduction in CT using tissue-class modeling and adaptive prefiltering [J].

Bal, Matthieu ;

Spies, Lothar .

MEDICAL PHYSICS, 2006, 33 (08) :2852-2859

[3] Artifacts in CT: Recognition and avoidance [J].

Barrett, JF ;

Keat, N .

RADIOGRAPHICS, 2004, 24 (06) :1679-1691

[4] Correction of CT artifacts and its influence on Monte Carlo dose calculations [J].

Bazalova, Magdalena ;

Beaulieu, Luc ;

Palefsky, Steven ;

Verhaegen, Frank .

MEDICAL PHYSICS, 2007, 34 (06) :2119-2132

[5] Evaluation of Two Iterative Techniques for Reducing Metal Artifacts in Computed Tomography [J].

Boas, F. Edward ;

Fleischmann, Dominik .

RADIOLOGY, 2011, 259 (03) :894-902

[6] Calibration of CT Hounsfield units for radiotherapy treatment planning of patients with metallic hip prostheses: the use of the extended CT-scale [J].

Coolens, C ;

Childs, PJ .

PHYSICS IN MEDICINE AND BIOLOGY, 2003, 48 (11) :1591-1603

[7] CT of metal implants: Reduction of artifacts using an extended CT scale technique [J].

Link, TM ;

Berning, W ;

Scherf, S ;

Joosten, U ;

Joist, A ;

Engelke, K ;

Daldrup-Link, HE .

JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY, 2000, 24 (01) :165-172

[8]

Osman N.D., 2007, WORLD ACAD SCI TECH, V35, P96

[9] Relationships of clinical protocols and reconstruction kernels with image quality and radiation dose in a 128-slice CT scanner: Study with an anthropomorphic and water phantom [J].

Paul, Jijo ;

Krauss, B. ;

Banckwitz, R. ;

Maentele, W. ;

Bauer, R. W. ;

Vogl, T. J. .

EUROPEAN JOURNAL OF RADIOLOGY, 2012, 81 (05) :E699-E703

[10] 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

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