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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

3次元腹部CT像および磁気式位置センサを用いた大腸内視鏡トラッキング手法の開発

http://hdl.handle.net/2237/23717
aa3358dd-6a4d-4016-8170-45099aa5c344
名前 / ファイル ライセンス アクション
110009780455.pdf 110009780455.pdf (1.2 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2016-03-03
タイトル
タイトル 3次元腹部CT像および磁気式位置センサを用いた大腸内視鏡トラッキング手法の開発
その他のタイトル
その他のタイトル Development of colonoscope tracking method by using 3D abdominal CT images and electromagnetic sensors
著者 近藤, 弘明

× 近藤, 弘明

WEKO 63290

近藤, 弘明

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小田, 昌宏

× 小田, 昌宏

WEKO 63291

小田, 昌宏

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古川, 和宏

× 古川, 和宏

WEKO 63292

古川, 和宏

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宮原, 良二

× 宮原, 良二

WEKO 63293

宮原, 良二

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廣岡, 芳樹

× 廣岡, 芳樹

WEKO 63294

廣岡, 芳樹

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後藤, 秀実

× 後藤, 秀実

WEKO 63295

後藤, 秀実

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北坂, 孝幸

× 北坂, 孝幸

WEKO 63296

北坂, 孝幸

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森, 健策

× 森, 健策

WEKO 63297

森, 健策

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Kondo, Hiroaki

× Kondo, Hiroaki

WEKO 63298

Kondo, Hiroaki

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Oda, Masahiro

× Oda, Masahiro

WEKO 63299

Oda, Masahiro

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Furukawa, Kazuhiro

× Furukawa, Kazuhiro

WEKO 63300

Furukawa, Kazuhiro

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Miyahara, Ryoji

× Miyahara, Ryoji

WEKO 63301

Miyahara, Ryoji

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Hirooka, Yoshiki

× Hirooka, Yoshiki

WEKO 63302

Hirooka, Yoshiki

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Goto, Hidemi

× Goto, Hidemi

WEKO 63303

Goto, Hidemi

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Kitasaka, Takayuki

× Kitasaka, Takayuki

WEKO 63304

Kitasaka, Takayuki

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Mori, Kensaku

× Mori, Kensaku

WEKO 63305

Mori, Kensaku

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権利
権利情報 (c)一般社団法人電子情報通信学会 本文データは学協会の許諾に基づきCiNiiから複製したものである
キーワード
主題Scheme Other
主題 腹部CT像
キーワード
主題Scheme Other
主題 仮想化内視鏡
キーワード
主題Scheme Other
主題 大腸内視鏡
キーワード
主題Scheme Other
主題 トラッキング
キーワード
主題Scheme Other
主題 Abdominal CT images
キーワード
主題Scheme Other
主題 Virtual colonoscopy
キーワード
主題Scheme Other
主題 Colonoscope
キーワード
主題Scheme Other
主題 Tracking
抄録
内容記述 CT像を用いた大腸検査はCTコロノグラフィと呼ばれ,近年広く行われている.これにより発見された病変に対して,大腸内視鏡を用いて治療が行われるが,治療の際に大腸内に挿入された大腸内視鏡の先端位置を把握することは困難であり病変を見落とす恐れがある.そこで本稿では,CT像および磁気式位置センサを用いて大腸内視鏡の先端位置を推定する手法を提案する.本手法では,最初に3次元腹部CT像から得られる大腸内腔を通る曲線(大腸芯線)を抽出し,磁気式位置センサから大腸内視鏡の形状を表す曲線(内視鏡線)を推定する.次に,大腸芯線を用いて解剖学的に特徴のある点(特徴点)を抽出し,抽出した特徴点から座標系間の位置合わせを行う.その後,大腸芯線から抽出された特徴点および内視鏡線に沿った長さを用いて大腸芯線上の各点に内視鏡線上の各点に対応付ける.本手法を大腸ファントムに適用し,大腸芯線に沿った長さにより大腸内視鏡先端の対応付け誤差を計測したところ,大腸の変形が小さい部位では平均15.8mmと良好な精度が得られた. Recently, colon diagnosis method using CT volume, which is called as CT colonography, is widely used. Lesions found by CT colonography can be resected by using colonoscope. However, understanding a colonoscope tip position while inserting it to the colon is difficult. In this paper, we propose an estimation metod of a colonoscope tip position in the colon using abdominal CT volume and electromagnetic position sensor. Firstly, we extract a curve passing the center of lumen (colon centerline) from abdominal CT volume. We obtain a curve that represents the shape of the colonoscope (colonoscope line) by using electromagnetic sensors attached to the colonoscope. We extract anatomical feature points (landmarks) from the colon centerline and register the two coordinate systems utilizing landmarks. Then, we make correspondences between points on the estimated colonoscope line and the colon centerline by using the length along the colonoscope line and the landmarks. We applied the proposed method to a colon phantom and measured correspondence errors of the colonoscope tip. The errors were measured as the length along the colon centerline. The experiment results showed that the average error was 15.8mm at the sections where the colon does not show large deformation.
内容記述タイプ Abstract
出版者
出版者 一般社団法人電子情報通信学会
言語
言語 jpn
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
ISSN
収録物識別子タイプ ISSN
収録物識別子 0913-5685
書誌情報 電子情報通信学会技術研究報告. MI, 医用画像

巻 113, 号 146, p. 27-32, 発行日 2013-07
著者版フラグ
値 publisher
シリーズ
関連名称
関連名称 IEICE Technical Report;MI2013-24
URI
識別子 http://ci.nii.ac.jp/naid/110009780455/
識別子タイプ URI
URI
識別子 http://hdl.handle.net/2237/23717
識別子タイプ HDL
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