{"created":"2023-05-15T14:48:06.652784+00:00","id":65935,"links":{},"metadata":{"_buckets":{"deposit":"674d6743-12dd-4063-88c9-d77e9900416c"},"_deposit":{"created_by":1,"id":"65935","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"65935"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00065935","sets":["10:29"]},"author_link":["776228","776226","776227","776232","776231","776230","776225","776229"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2016-07-21","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"我々は，認知症などの早期スクリーニングが可能な，高感度ヘルメット型PETを提案し，開発を進めている．提案装置では，検出器を半球型に配置することで，同じ検出器数の円筒型PETに対して，大幅な感度向上を達成でき，さらに，あごの部分に検出器を追加することで，半球中心付近の感度を効率的に高めることが可能である．今回，放射線医学総合研究所独自方式の4層DOI検出器を用いて試作機の開発を行った．その際，開発の自由度の高いシングル収集，及び同時計数判定を後から行うソフトウェア同時計数法を用いた．また，検出器配置が特殊なため，専用の画像再構成法，及び補正法の開発を行った．具体的には，プールファントムを用いた感度補正法，シングル計数率を基にした偶発同時計数補正法，別途撮影したCT画像を用いた減弱補正法及び散乱補正法をリストモードOSEM法として実装した．そして，頭部を模擬した3D脳ファントムを撮影した結果，良好な画像が得られることを確認した．","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"第35回日本医用画像工学会","subitem_description_type":"Other"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"田島, 英朗"}],"nameIdentifiers":[{"nameIdentifier":"776225","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉田, 英治"}],"nameIdentifiers":[{"nameIdentifier":"776226","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"岩男, 悠真"}],"nameIdentifiers":[{"nameIdentifier":"776227","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山谷, 泰賀"}],"nameIdentifiers":[{"nameIdentifier":"776228","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tashima, Hideaki","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"776229","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yoshida, Eiji","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"776230","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Iwao, Yuma","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"776231","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yamaya, Taiga","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"776232","nameIdentifierScheme":"WEKO"}]}]},"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":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"ヘルメット型PETにおける画像再構成法の開発","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ヘルメット型PETにおける画像再構成法の開発"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2016-07-19"},"publish_date":"2016-07-19","publish_status":"0","recid":"65935","relation_version_is_last":true,"title":["ヘルメット型PETにおける画像再構成法の開発"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-16T00:20:55.659174+00:00"}