{"created":"2023-05-15T14:51:52.676385+00:00","id":70917,"links":{},"metadata":{"_buckets":{"deposit":"3b2649c0-faf8-4a1d-9b1d-d9492ac2de31"},"_deposit":{"created_by":1,"id":"70917","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"70917"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00070917","sets":["10:28"]},"author_link":["696848","696842","696851","696849","696856","696858","696844","696854","696850","696845","696847","696853","696857","696859","696843","696840","696846","696855","696841","696852"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2012-09-08","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"PETとMRIの同時撮像を行うPET/MRI装置は、PET/CT装置と比較して被ばく量が少なくなることや、２つの機能画像を同時に取得できる等の特徴を持っている。我々のグループでは近接撮像を可能とするDOI(depth of interaction)PET検出器の優位性を生かした、世界初となるPET-RFコイル一体型装置の開発を進めている。昨年の報告では市販のバードケイジ型RFコイルと試作型PET/MRI用PET検出器を用いて、その実現可能性を示した。現在は図のようなPET検出器の取り付けが可能なRFコイルの試作の開発を行っており、試作PET検出器と同時計測を行った際の性能評価を進めている。\n 実験は3.0TのMRI装置(MAGNETOM verio, Siemens)を用い、図の様に試作型RFコイル上にテスト用PET検出器を設置し同時計測を行った。PET検出器は磁場の影響が少ない半導体光センサとLGSO結晶からなり、検出器上端がRFコイルと同じ径となるよう設置した。PET検出器用の電源やデータ収集システムはMRI室の外側に設置して測定を行った。MRIの画像はGradient Echo法を用いて取得した。PET検出器を置かない場合(a)、PET検出器の電源を落としている場合(b)とPET検出器と同時計測を行っている場合(c)とで得られるMRI画像の比較を行った。ファントム領域におけるNSD(normalized standard deviation)で比較を行った結果、各条件に対し(a)0.13(b)0.14(c)0.14が得られており、PETとの同時測定の場合でもMRIの画像の劣化は殆ど見られなかった。","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40回日本磁気共鳴医学会大会","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":"錦戸, 文彦"}],"nameIdentifiers":[{"nameIdentifier":"696840","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小畠, 隆行"}],"nameIdentifiers":[{"nameIdentifier":"696841","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"菅, 幹生"}],"nameIdentifiers":[{"nameIdentifier":"696842","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"尾松, 美香"}],"nameIdentifiers":[{"nameIdentifier":"696843","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"清水, 浩大"}],"nameIdentifiers":[{"nameIdentifier":"696844","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"稲玉, 直子"}],"nameIdentifiers":[{"nameIdentifier":"696845","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉田, 英治"}],"nameIdentifiers":[{"nameIdentifier":"696846","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村山, 秀雄"}],"nameIdentifiers":[{"nameIdentifier":"696847","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"伊藤, 浩"}],"nameIdentifiers":[{"nameIdentifier":"696848","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山谷, 泰賀"}],"nameIdentifiers":[{"nameIdentifier":"696849","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"錦戸 文彦","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"696850","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小畠 隆行","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"696851","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"菅 幹生","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"696852","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"尾松 美香","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"696853","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"清水 浩大","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"696854","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"稲玉 直子","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"696855","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉田 英治","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"696856","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村山 秀雄","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"696857","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"伊藤 浩","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"696858","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山谷 泰賀","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"696859","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":"一体型PET-MRIディテクタ用試作コイルのPET検出器との同時計測による性能評価","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"一体型PET-MRIディテクタ用試作コイルのPET検出器との同時計測による性能評価"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-09-26"},"publish_date":"2012-09-26","publish_status":"0","recid":"70917","relation_version_is_last":true,"title":["一体型PET-MRIディテクタ用試作コイルのPET検出器との同時計測による性能評価"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T19:57:20.003735+00:00"}