{"created":"2023-05-15T14:59:42.019070+00:00","id":81004,"links":{},"metadata":{"_buckets":{"deposit":"97c4c402-416c-4e3c-8477-2785508efb8a"},"_deposit":{"created_by":1,"id":"81004","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"81004"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00081004","sets":["10:29"]},"author_link":["901173","901169","901177","901170","901174","901178","901172","901175","901171","901176","901179","901168","901181","901180"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2020-11-12","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"【目的】放射線検出器や画像再構成技術の進歩により、診療用PET装置の物理学的性能は急速に向上している。本研究は、2013年以前に収集した13装置のファントム画像（旧装置群）と2018年以降に収集した19装置のファントム画像（現装置群）を評価、比較し、診療用PET装置のイメージング性能の進歩を明らかにすることを目的とする。【方法】計32台のPET装置で収集したNEMA bodyファントム画像を評価対象とした。10 mm球の視覚的描出能（識別不可能: 0点，識別可能だが同程度のノイズあり: 1点，識別可能: 2点）, 10 mm球のコントラスト(QH,10mm), バックグラウンド変動性(N10mm), バックグラウンド変動係数(CVBG), 相対リカバリ係数(RC)を評価した。【結果】全ての評価指標において新装置群が優れていた。2分撮像画像の視覚的描出能評価では、旧装置群は中央値0.8点、新装置群は中央値2.0点であり、現在主流のPET装置であれば10 mm球を明瞭に描出できることが示唆された。【結論】診療用PET装置のイメージング性能は、約5年間で大幅に向上していることが示された。","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60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":"赤松, 剛"}],"nameIdentifiers":[{"nameIdentifier":"901168","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"島田, 直毅"}],"nameIdentifiers":[{"nameIdentifier":"901169","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"松本, 圭一"}],"nameIdentifiers":[{"nameIdentifier":"901170","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"大崎, 洋充"}],"nameIdentifiers":[{"nameIdentifier":"901171","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"鈴木, 一史"}],"nameIdentifiers":[{"nameIdentifier":"901172","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"織田, 圭一"}],"nameIdentifiers":[{"nameIdentifier":"901173","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"千田, 道雄"}],"nameIdentifiers":[{"nameIdentifier":"901174","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"立石, 宇貴秀"}],"nameIdentifiers":[{"nameIdentifier":"901175","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"寺内, 隆司"}],"nameIdentifiers":[{"nameIdentifier":"901176","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Akamatsu, Go","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"901177","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Matsumoto, Keiichi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"901178","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Daisaki, Hiromitsu","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"901179","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Oda, Keiichi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"901180","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Senda, Michio","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"901181","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":"診療用PET装置のイメージング性能の進歩：新旧32装置のファントム画像評価","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"診療用PET装置のイメージング性能の進歩：新旧32装置のファントム画像評価"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2020-10-23"},"publish_date":"2020-10-23","publish_status":"0","recid":"81004","relation_version_is_last":true,"title":["診療用PET装置のイメージング性能の進歩：新旧32装置のファントム画像評価"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T21:16:41.901275+00:00"}