{"created":"2023-05-15T14:51:36.964746+00:00","id":70558,"links":{},"metadata":{"_buckets":{"deposit":"dee30a19-a7e3-4491-af4c-11c4194a328b"},"_deposit":{"created_by":1,"id":"70558","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"70558"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00070558","sets":["10:28"]},"author_link":["692938","692929","692930","692937","692933","692924","692932","692927","692934","692928","692939","692940","692926","692935","692936","692925","692931","692923"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2011-10-01","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"PETとMRIの同時撮像を可能とする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することが可能になる事など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。現在はPET検出器とMRI装置の同時計測中での、それぞれに対する影響についての評価実験を行っている。\n 実験は3.0TのMRI装置(Signa HDxT 3.0T、GE Helthcare)のバードケイジ型RFコイルの近傍にテスト用PET検出器を置き、それぞれの計測を行った。テスト用PET検出器では、磁場からの影響が少ない半導体光センサであるMPPC(浜松ホトニクス製)とLGSOシンチレータを用いた。これらはアルミのシールドボックス中に入れRFコイルの近傍に設置し、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検出器の電源を落としている場合と電源を入れ測定を行っている場合とで得られるMRI画像の比較を行った。図にそれぞれの場合で得られたMRI画像を示す。ファントム領域で関心領域を取りPET検出器からの雑音の混入を評価した結果、どちらの場合でもNSD=0.032となりPET検出器からの影響は殆ど無いという結果が得られた。また、PET検出器もMRI測定中でも性能に影響が見られないという結果が得られた。","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39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":"692923","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"橘, 篤志"}],"nameIdentifiers":[{"nameIdentifier":"692924","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小畠, 隆行"}],"nameIdentifiers":[{"nameIdentifier":"692925","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉岡, 俊祐"}],"nameIdentifiers":[{"nameIdentifier":"692926","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"稲玉, 直子"}],"nameIdentifiers":[{"nameIdentifier":"692927","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉田, 英治"}],"nameIdentifiers":[{"nameIdentifier":"692928","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"菅, 幹生"}],"nameIdentifiers":[{"nameIdentifier":"692929","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村山, 秀雄"}],"nameIdentifiers":[{"nameIdentifier":"692930","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山谷, 泰賀"}],"nameIdentifiers":[{"nameIdentifier":"692931","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"錦戸 文彦","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"692932","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"橘 篤志","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"692933","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小畠 隆行","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"692934","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉岡 俊祐","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"692935","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"稲玉 直子","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"692936","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉田 英治","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"692937","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"菅 幹生","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"692938","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村山 秀雄","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"692939","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山谷 泰賀","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"692940","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":"PET-MRI同時測定のためのPET-RFコイル一体型装置の基礎研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"PET-MRI同時測定のためのPET-RFコイル一体型装置の基礎研究"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2011-10-03"},"publish_date":"2011-10-03","publish_status":"0","recid":"70558","relation_version_is_last":true,"title":["PET-MRI同時測定のためのPET-RFコイル一体型装置の基礎研究"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T20:01:31.949762+00:00"}