{"id":233903,"updated":"2025-01-19T09:56:35.439014+00:00","links":{},"created":"2025-01-19T01:35:33.006525+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00233903","sets":["1164:2836:11471:11602"]},"path":["11602"],"owner":"44499","recid":"233903","title":["CTガイド下穿刺における3次元穿刺経路作成手法の提案"],"pubdate":{"attribute_name":"公開日","attribute_value":"2024-05-08"},"_buckets":{"deposit":"eb2ecf0b-a0a5-4c66-bf90-277ca1bb2f83"},"_deposit":{"id":"233903","pid":{"type":"depid","value":"233903","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"CTガイド下穿刺における3次元穿刺経路作成手法の提案","author_link":["636394","636392","636396","636391","636393","636395"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"CTガイド下穿刺における3次元穿刺経路作成手法の提案"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"[DPS]システム","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2024-05-08","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"岡山大学大学院環境生命自然科学研究科"},{"subitem_text_value":"岡山大学大学院自然科学研究科"},{"subitem_text_value":"京都府立医科大学大学院放射線診断治療学講座"},{"subitem_text_value":"京都府立医科大学大学院放射線診断治療学講座"},{"subitem_text_value":"大阪公立大学大学院情報学研究科"},{"subitem_text_value":"岡山大学学術研究院環境生命自然科学学域"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Faculty of Environmental, Life, Natural Science and Technology, Okayama University","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Natural Science and Technology, Okayama University","subitem_text_language":"en"},{"subitem_text_value":"Department of Radiology, Kyoto Prefectural University of Medicine","subitem_text_language":"en"},{"subitem_text_value":"Department of Radiology, Kyoto Prefectural University of Medicine","subitem_text_language":"en"},{"subitem_text_value":"Institute of Informatics, Osaka Metropolitan University","subitem_text_language":"en"},{"subitem_text_value":"Faculty of Environmental, Life, Natural Science and Technology, Institute of Academic and Research, Okayama University","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/233903/files/IPSJ-DPS24199036.pdf","label":"IPSJ-DPS24199036.pdf"},"date":[{"dateType":"Available","dateValue":"2026-05-08"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-DPS24199036.pdf","filesize":[{"value":"5.2 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"34"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"4e724970-b12a-4c33-acc0-0b6b8f9a8887","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2024 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"眞鍋, 知里"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"武田, 碧生"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"増井, 浩二"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"酒井, 晃二"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"藤本, まなと"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"後藤, 佑介"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10116224","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8906","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"近年，CT 画像を用いた画像誘導穿刺である CT ガイド下穿刺が利用されている．CT 画像は，体のどの部位についても範囲にほぼ制限なく画像を取得できるため，体内のすべての部位にあるターゲットに対して理論上は穿刺可能である．我々の研究グループでは，CT ガイド下穿刺における穿刺経路の探索手法に取り組んでいる．しかし，従来手法では，穿刺経路の探索が 2 次元に限定されるため，探索範囲を3  次元に拡張する場合における探索時間は非常に長くなる．また，多くの場合で穿刺経路の探索時間に上限を設定するため，従来手法による探索範囲は，人体を構成する一部の領域に限定される．本研究では，CT ガイド下穿刺において 3 次元による穿刺経路の探索手法を提案する．提案手法では，2 次元平面上で与えられた始点から終点までの線分を高速導出するレイ・トレーシング法を用いることで，実際の穿刺経路の探索において許容される時間内で，人体を構成するすべての CT 画像を用いて，安全かつ最短の穿刺経路を導出できる．計算機によるシミュレーション評価の結果，2 次元 CT 画像の数が 15 の場合における 3 次元穿刺経路の探索時間は，提案手法で約 4.77 秒，候補となるすべての穿刺経路を探索する従来手法で約 2599.0秒 となり，提案手法の探索時間は従来手法に比べて約 99.8% 短縮した．また，提案手法で導出した穿刺経路の候補を穿刺医師がアンケート形式で評価した結果，これらの候補経路が有用であることを確認した．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"8","bibliographic_titles":[{"bibliographic_title":"研究報告マルチメディア通信と分散処理（DPS）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2024-05-08","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"36","bibliographicVolumeNumber":"2024-DPS-199"}]},"relation_version_is_last":true,"weko_creator_id":"44499"}}