{"created":"2023-05-15T11:56:00.746052+00:00","id":1126,"links":{},"metadata":{"_buckets":{"deposit":"435338ea-c9a0-4d55-aa68-074ca7383cec"},"_deposit":{"created_by":14,"id":"1126","owners":[14],"pid":{"revision_id":0,"type":"depid","value":"1126"},"status":"published"},"_oai":{"id":"oai:kyutech.repo.nii.ac.jp:00001126","sets":["8:24"]},"author_link":["5268","402","5270","399","404"],"control_number":"1126","item_1689815586683":{"attribute_name":"CRID","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://cir.nii.ac.jp/crid/1390001204481399168","subitem_relation_type_select":"URI"}}]},"item_21_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2007-07-31","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"17","bibliographicPageStart":"11","bibliographicVolumeNumber":"9","bibliographic_titles":[{"bibliographic_title":"バイオメディカル・ファジィ・システム学会誌","bibliographic_titleLang":"ja"},{"bibliographic_title":"Journal of Biomedical Fuzzy Systems Association","bibliographic_titleLang":"en"}]}]},"item_21_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"近年,様々な画像解析技術が医療現場に導入されるようになった。特にHRCTは,有用性の高い診断システムの一つとして高い評価を得ている。腹部CT画像を用いた診断においても,高分解能を有するCT画像から,術前に患者の血管領域の構造を把握するなど,様々な用途で利用されている。これらの画像解析を行うには,対象領域のセグメンテーション技術が必要であり,領域抽出に関する研究が盛んに行われている。一方、2つの異なる時期に作成される画像からの差分演算を行い,変化部位を強調するための経時差分技法が用いられている。経時差分技法において最も重要視されているのは,過去画像と現在画像の正確な位置合わせを行うための画像変形(ワーピング)処理である。ワーピングが正確に行われていなければ,差分画像上において位置ずれによるアーチファクトが発生し,画質が低下するという問題が生じる。本稿では,従来用いられている2次元経時差分技法を3次元に拡張し,腹部MDCT画像に適用することにより,血管領域の抽出を試みる。提案する手法を実腹部CT画像4症例に適用した結果について述べる。","subitem_description_language":"ja","subitem_description_type":"Abstract"},{"subitem_description":"In recent years, various imaging techniques have been introduced into medical fields for extraction of internal organ. Especially, HRCT is one of the useful diagnosis systems because it provides high resolution images. In the field of abdominal CT images, it is very important to understand blood vessel structures of a patient before operation. Furthermore, in the medical imaging field, segmentation is one of the most important problems. On the other hand, temporal subtraction method attempt to remove normal structures in the CT images, so that abnormalities can be observed more clearly to the medical doctor. With the subtraction technique, image warping is very important. If the performance of warping is no good, normal structures will appear as the artifacts on the subtraction image, and the image quality can be degraded. In this paper, we propose a 3-dimentional temporal subtraction method for abdominal CT images in order to detect the blood vessel region. The proposed technique is applied to four abdominal CT images and satisfactory results are achieved.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_21_publisher_7":{"attribute_name":"出版社","attribute_value_mlt":[{"subitem_publisher":"バイオメディカル・ファジィ・システム学会","subitem_publisher_language":"ja"}]},"item_21_relation_12":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.24466/jbfsa.9.1_11","subitem_relation_type_select":"DOI"}}]},"item_21_rights_13":{"attribute_name":"著作権関連情報","attribute_value_mlt":[{"subitem_rights":"バイオメディカル・ファジィ・システム学会. 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"}]},"item_21_select_59":{"attribute_name":"査読の有無","attribute_value_mlt":[{"subitem_select_item":"yes"}]},"item_21_source_id_10":{"attribute_name":"NCID","attribute_value_mlt":[{"subitem_source_identifier":"AA1145146X","subitem_source_identifier_type":"NCID"}]},"item_21_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2424-2578","subitem_source_identifier_type":"EISSN"},{"subitem_source_identifier":"1345-1537","subitem_source_identifier_type":"PISSN"}]},"item_21_text_64":{"attribute_name":"業績ID","attribute_value_mlt":[{"subitem_text_value":"D9B272C6A219E8EA49257567000916AC"}]},"item_21_version_type_58":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAlternatives":[{"creatorAlternative":"小松, 昌史","creatorAlternativeLang":"ja"}],"creatorNames":[{"creatorName":"Komatsu, Masafumi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNames":[{}]}],"creatorAlternatives":[{"creatorAlternative":"Kamiya, Tohru","creatorAlternativeLang":"en"},{"creatorAlternative":"神谷, 亨","creatorAlternativeLang":"ja"},{"creatorAlternative":"カミヤ, トオル","creatorAlternativeLang":"ja-Kana"}],"creatorNames":[{"creatorName":"Kim, Hyungseop","creatorNameLang":"en"},{"creatorName":"金, 亨燮","creatorNameLang":"ja"}],"nameIdentifiers":[{},{},{},{}]},{"creatorNames":[{"creatorName":"山本, 晃義","creatorNameLang":"ja"},{"creatorName":"Yamamoto, Akiyoshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNames":[{}]}],"creatorAlternatives":[{"creatorAlternative":"丹上, 結乃純","creatorAlternativeLang":"ja"},{"creatorAlternative":"Tanjo, Yui","creatorAlternativeLang":"en"},{"creatorAlternative":"タンジョウ, ユウイ","creatorAlternativeLang":"ja-Kana"}],"creatorNames":[{"creatorName":"Tan, Joo kooi","creatorNameLang":"en"},{"creatorName":"タン, ジュークイ","creatorNameLang":"ja"}],"nameIdentifiers":[{},{},{},{}]},{"creatorAffiliations":[{"affiliationNames":[{}]}],"creatorNames":[{"creatorName":"Ishikawa, Seiji","creatorNameLang":"en"},{"creatorName":"石川, 聖二","creatorNameLang":"ja"},{"creatorName":"イシカワ, セイジ","creatorNameLang":"ja-Kana"}],"familyNames":[{},{},{}],"givenNames":[{},{},{}],"nameIdentifiers":[{},{},{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2009-02-24"}],"displaytype":"detail","filename":"kim_01.pdf","filesize":[{"value":"1.8 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"kim_01.pdf","url":"https://kyutech.repo.nii.ac.jp/record/1126/files/kim_01.pdf"},"version_id":"f4d9bf3c-ae27-45c3-b015-e177a591291c"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"関心領域","subitem_subject_scheme":"Other"},{"subitem_subject":"経時差分技法","subitem_subject_scheme":"Other"},{"subitem_subject":"グローバルマッチング","subitem_subject_scheme":"Other"},{"subitem_subject":"ローカルマッチング","subitem_subject_scheme":"Other"},{"subitem_subject":"セグメンテーション","subitem_subject_scheme":"Other"},{"subitem_subject":"Regions of interest","subitem_subject_scheme":"Other"},{"subitem_subject":"Temporal subtraction","subitem_subject_scheme":"Other"},{"subitem_subject":"Global matching","subitem_subject_scheme":"Other"},{"subitem_subject":"Local matching","subitem_subject_scheme":"Other"},{"subitem_subject":"Segmentation","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"経時差分法を用いた腹部CT画像上の血管領域の抽出","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"経時差分法を用いた腹部CT画像上の血管領域の抽出","subitem_title_language":"ja"},{"subitem_title":"Extraction of Blood Vessel Regions on the Abdominal CT Images Employing Temporal Subtraction Met","subitem_title_language":"en"}]},"item_type_id":"21","owner":"14","path":["24"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2009-02-24"},"publish_date":"2009-02-24","publish_status":"0","recid":"1126","relation_version_is_last":true,"title":["経時差分法を用いた腹部CT画像上の血管領域の抽出"],"weko_creator_id":"14","weko_shared_id":-1},"updated":"2024-02-28T07:05:48.807024+00:00"}