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  1. A500 情報学部/情報学研究科・情報文化学部・情報科学研究科
  2. A500a 雑誌掲載論文
  3. 学術雑誌

Robust colonoscope tracking method for colon deformations utilizing coarse-to-fine correspondence findings

http://hdl.handle.net/2237/26221
http://hdl.handle.net/2237/26221
86431db4-a764-494c-b72d-77f92b18e0fc
名前 / ファイル ライセンス アクション
colonnavi11_reviseds.pdf colonnavi11_reviseds.pdf ファイル公開:2018/01/01 (332.6 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2017-04-28
タイトル
タイトル Robust colonoscope tracking method for colon deformations utilizing coarse-to-fine correspondence findings
言語 en
著者 Oda, Masahiro

× Oda, Masahiro

WEKO 71286

en Oda, Masahiro

Search repository
Kondo, Hiroaki

× Kondo, Hiroaki

WEKO 71287

en Kondo, Hiroaki

Search repository
Kitasaka, Takayuki

× Kitasaka, Takayuki

WEKO 71288

en Kitasaka, Takayuki

Search repository
Furukawa, Kazuhiro

× Furukawa, Kazuhiro

WEKO 71289

en Furukawa, Kazuhiro

Search repository
Miyahara, Ryoji

× Miyahara, Ryoji

WEKO 71290

en Miyahara, Ryoji

Search repository
Hirooka, Yoshiki

× Hirooka, Yoshiki

WEKO 71291

en Hirooka, Yoshiki

Search repository
Goto, Hidemi

× Goto, Hidemi

WEKO 71292

en Goto, Hidemi

Search repository
Navab, Nassir

× Navab, Nassir

WEKO 71293

en Navab, Nassir

Search repository
Mori, Kensaku

× Mori, Kensaku

WEKO 71294

en Mori, Kensaku

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 The final publication is available at Springer via http://10.1007/s11548-016-1456-6
キーワード
主題Scheme Other
主題 Colon
キーワード
主題Scheme Other
主題 Colonoscope tracking
キーワード
主題Scheme Other
主題 CT image
キーワード
主題Scheme Other
主題 EM sensor
抄録
内容記述 Purpose: Polyps found during CT colonography can be removed by colonoscopic polypectomy. A colonoscope navigation system that navigates a physician to polyp positions while performing the colonoscopic polypectomy is required. Colonoscope tracking methods are essential for implementing colonoscope navigation systems. Previous colonoscope tracking methods have failed when the colon deforms during colonoscope insertions. This paper proposes a colonoscope tracking method that is robust against colon deformations. Method: The proposed method generates a colon centerline from a CT volume and a curved line representing the colonoscope shape (colonoscope line) by using electromagnetic sensors. We find correspondences between points on a deformed colon centerline and colonoscope line by a landmark-based coarse correspondence finding and a length-based fine correspondence finding processes. Even if the coarse correspondence finding process fails to find some correspondences, which occurs with colon deformations, the fine correspondence finding process is able to find correct correspondences by using previously recorded line lengths. Result: Experimental results using a colon phantom showed that the proposed method finds the colonoscope tip position with tracking errors smaller than 50 mm in most trials. A physician who specializes in gastroenterology commented that tracking errors smaller than 50 mm are acceptable. This is because polyps are observable from the colonoscope camera when positions of the colonoscope tip and polyps are closer than 50 mm. Conclusions: We developed a colonoscope tracking method that is robust against deformations of the colon. Because the process was designed to consider colon deformations, the proposed method can track the colonoscope tip position even if the colon deforms.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 Springer
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1007/s11548-016-1456-6
ISSN
収録物識別子タイプ PISSN
収録物識別子 1861-6410
書誌情報 en : International Journal of Computer Assisted Radiology and Surgery

巻 12, 号 1, p. 39-50, 発行日 2017-01
著者版フラグ
値 author
URI
識別子 http://doi.org/10.1007/s11548-016-1456-6
識別子タイプ DOI
URI
識別子 http://hdl.handle.net/2237/26221
識別子タイプ HDL
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