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  1. 学術雑誌掲載済論文
  2. 洋雑誌

Statistical iterative reconstruction for streak artefact reduction when using multidetector CT to image the dento-alveolar structures

https://kitami-it.repo.nii.ac.jp/records/7859
a3b8205c-1884-453a-a0ed-cd1fe7df887b
名前 / ファイル ライセンス アクション
J+Dong,+Y+Hayakawa+and+C+kober,+DMFR+manuscript-Last+version_final.pdf J+Dong,+Y+Hayakawa+and+C+kober,+DMFR+manuscript-Last+version_final.pdf (764.1 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2015-07-01
タイトル
言語 en
タイトル Statistical iterative reconstruction for streak artefact reduction when using multidetector CT to image the dento-alveolar structures
言語
言語 eng
キーワード
主題Scheme Other
主題 CT
キーワード
主題Scheme Other
主題 X-ray
キーワード
主題Scheme Other
主題 statistical iterative reconstruction
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
アクセス権
アクセス権URI open access
著者 Dong, Jian

× Dong, Jian

WEKO 40527

en Dong, Jian

Search repository
Hayakawa, Yoshihiko

× Hayakawa, Yoshihiko

WEKO 40528

en Hayakawa, Yoshihiko

Search repository
Kober, Cornelia

× Kober, Cornelia

WEKO 40529

en Kober, Cornelia

Search repository
著者別名
姓名
姓名 董, 建
言語 ja
著者別名
姓名
姓名 早川, 吉彦
言語 ja
抄録
内容記述タイプ Abstract
内容記述 Objectives:
抄録
内容記述タイプ Abstract
内容記述 When metallic prosthetic appliances and dental fillings exist in the oral cavity, the appearance of metal-induced streak artefacts are not avoidable in CT images. The study was to develop a method for artefact reduction using the statistical reconstruction on MD (multi-detectors row) CT images.
抄録
内容記述タイプ Abstract
内容記述 Methods:
抄録
内容記述タイプ Abstract
内容記述 Adjacent CT images often depict similar anatomical structures. Therefore, reconstructed images with weak artefacts were attempted using projection data of an artefact-free image in a neighboring thin slice. Images with moderate and strong artefacts were continuously processed in sequence by successive iterative restoration where projection data was generated from the adjacent reconstructed slice. First, the basic maximum likelihood-expectation maximization (ML-EM) algorithm was applied. Next, the ordered subset-expectation maximization (OS-EM) algorithm was examined. Alternatively, a small region of interest (ROI) setting was designated. Finally, the GPGPU (general purpose graphic processing unit) machine was applied in both situations.
抄録
内容記述タイプ Abstract
内容記述 Results:
抄録
内容記述タイプ Abstract
内容記述 The algorithms reduced metal-induced streak artefacts on MDCT images when the sequential processing method was applied. The OS-EM and small ROI reduced the processing duration without apparent detriments. GPGPU realized the high performance.
抄録
内容記述タイプ Abstract
内容記述 Conclusions:
抄録
内容記述タイプ Abstract
内容記述 A statistical reconstruction method was applied for the streak artefact reduction. The alternatives of algorithms applied were effective. Both software and hardware tools, such as OS-EM, small ROI and GPGPU achieved fast artefact correction.
書誌情報 Dentomaxillofacial Radiology

巻 43, 号 5, p. 20130373, 発行日 2014-07
DOI
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.1259/dmfr.20130373
出版者
出版者 British Institute of Radiology
著者版フラグ
値 author
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
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