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局所濃淡構造解析を用いた3次元腹部造影CT像からの胆道自動抽出手法
http://hdl.handle.net/2237/23716
http://hdl.handle.net/2237/23716c0f64b10-c3f7-4951-8ea3-4c8112253099
名前 / ファイル | ライセンス | アクション |
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110009768637.pdf (985.6 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-03-03 | |||||
タイトル | ||||||
タイトル | 局所濃淡構造解析を用いた3次元腹部造影CT像からの胆道自動抽出手法 | |||||
言語 | ja | |||||
その他のタイトル | ||||||
その他のタイトル | A method for automated extraction of biliary tract from 3D abdominal contrast CT images based on local intensity structure analysis | |||||
言語 | en | |||||
著者 |
古閑, 楠人
× 古閑, 楠人× 林, 雄一郎× 廣瀬, 友昭× 小田, 昌宏× 北坂, 孝幸× 伊神, 剛× 梛野, 正人× 森, 健策× KOGA, Kusuto× HAYASHI, Yuichiro× HIROSE, Tomoaki× ODA, Masahiro× KITASAKA, Takayuki× IGAMI, Tsuyoshi× NAGINO, Masato× MORI, Kensaku |
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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 | ja | |||||
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 | 胆道 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 胆管 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 胆管拡張症 | |||||
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 | 局所濃淡構造解析 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | biliary | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | bile duct | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | cholangiectasis | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | abdominal contrast CT images | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | local intensity structure analysis | |||||
抄録 | ||||||
内容記述 | 本稿では,3次元腹部造影CT像からの胆道自動抽出手法を提案する.CT像上での胆道は,その周囲と比較して濃度値が低い線状構造である.そこで,本手法ではヘッセ行列の固有値を用いた局所濃淡構造解析による暗線状構造強調(DLSE)フィルタを用いる.また,本手法は肝内と肝外の胆道を別々に抽出する.まず,肝内胆管領域をDLSEフィルタにより抽出する.肝外胆道系は,胆道の濃度値に近い軟部組織が周囲に存在しているため,DLSEフィルタにより十分に強調されない.そこで,CT像の軟部組織と胆道壁を強調した補正画像を作成する.補正画像に対してDLSEフィルタと領域拡張法を適用して肝外胆道系を抽出する.最後に,肝内と肝外の抽出結果を統合して,胆道領域を得る.本手法を胆管拡張症例の門脈相CT像16例に対して適用した結果,医師から半数の症例について概ね良好であるという評価を得た. | |||||
言語 | ja | |||||
内容記述タイプ | Abstract | |||||
抄録 | ||||||
内容記述 | In this paper, we propose a method for automated extraction of the biliary tract from abdominal contrast CT volumes based on local intensity structure analysis. Our method utilizes a dark linear structure enhancement (DLSE) filter based on the local intensity structure analysis of the eigenvalues of the Hessian matrix. Our method extracts the intrahepatic bile duct (IHBD) and the extrahepatic biliary tract (EHBT) separately. Firstly, we extract the IHBD region by using the DLSE filter. The DLSE filter cannot enhance the EHBT effectively because intensity value of the soft tissue in the neighborhood of the EHBT is very similar to that of the EHBT. Therefore, we generate a modified image, that is obtained by enhancing the soft tissue and biliary wall from the CT volume. Then, we extract the EHBT using DLSE filter and a region growing method from the modified image. Finally, we obtain the region of biliary tract by combining IHBD and EHBT regions. In the experiment using 16 cases of CT volumes, a medical doctor evaluated that our approach produced good results in half of the cases. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
内容記述 | ||||||
内容記述 | IEICE Technical Report;IE2013-18,IEICE Technical Report;PRMU2013-11,IEICE Technical Report;MI2013-11 | |||||
言語 | en | |||||
内容記述タイプ | Other | |||||
出版者 | ||||||
言語 | ja | |||||
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 | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関連情報 | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | URI | |||||
関連識別子 | http://ci.nii.ac.jp/naid/110009768637/ | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0913-5685 | |||||
書誌情報 |
ja : 電子情報通信学会技術研究報告. PRMU, パターン認識・メディア理解 巻 113, 号 63, p. 55-60, 発行日 2013-05 |
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著者版フラグ | ||||||
値 | publisher | |||||
シリーズ | ||||||
関連名称 | IEICE Technical Report;IE2013-18 | |||||
シリーズ | ||||||
関連名称 | IEICE Technical Report;PRMU2013-11 | |||||
シリーズ | ||||||
関連名称 | IEICE Technical Report;MI2013-11 | |||||
URI | ||||||
識別子 | http://ci.nii.ac.jp/naid/110009768637/ | |||||
識別子タイプ | URI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/23716 | |||||
識別子タイプ | HDL |