{"created":"2023-05-15T14:45:35.475431+00:00","id":62294,"links":{},"metadata":{"_buckets":{"deposit":"b02a967c-4eac-4048-a2c5-978cc09be4f6"},"_deposit":{"created_by":1,"id":"62294","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"62294"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00062294","sets":["10:29"]},"author_link":["615745","615739","615736","615734","615743","615740","615735","615737","615738","615741","615742","615744"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2007-11-06","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"【目的】DOI（depth-of-interaction）情報およびTOF（time-of-flight）情報を計測するPET装置の画質性能を従来装置と比較し、その画質改善効果を評価する。【方法】計算機シミュレーションにより，DOI情報あり・なし、TOF情報あり・なしの計4パターンの全身用PETの擬似データを作成し、DOIC法を適用したOSEM法により高速に再構成した。そして、解像度およびコントラストの対ノイズ特性、病変検出能を評価した。【結果】従来のnon-DOI装置では、視野周辺の解像度が中心部に対して低く、コントラスト回復が視野内で不均一であるのに対し、4層DOI装置では解像度、コントラスト回復がほぼ均一になり、局所集積の定量性が高まった。一方、TOF情報（400ps）により約50%ノイズが低減した。病変検出能もDOIおよびTOF情報の利用により改善することを確認し、DOI-TOF-PETの優れたイメージング性能が明らかになった。","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47回日本核医学会学術総会","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":"小林, 哲哉"}],"nameIdentifiers":[{"nameIdentifier":"615734","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山谷, 泰賀"}],"nameIdentifiers":[{"nameIdentifier":"615735","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"北村, 圭司"}],"nameIdentifiers":[{"nameIdentifier":"615736","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"長谷川, 智之"}],"nameIdentifiers":[{"nameIdentifier":"615737","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村山, 秀雄"}],"nameIdentifiers":[{"nameIdentifier":"615738","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"菅, 幹生"}],"nameIdentifiers":[{"nameIdentifier":"615739","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小林 哲哉","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"615740","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山谷 泰賀","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"615741","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"北村 圭司","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"615742","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"長谷川 智之","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"615743","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村山 秀雄","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"615744","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"菅 幹生","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"615745","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":"DOI-TOF-PETの計算機シミュレーションによる画質評価","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"DOI-TOF-PETの計算機シミュレーションによる画質評価"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2007-11-08"},"publish_date":"2007-11-08","publish_status":"0","recid":"62294","relation_version_is_last":true,"title":["DOI-TOF-PETの計算機シミュレーションによる画質評価"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T21:32:25.140708+00:00"}