{"created":"2023-05-15T14:47:30.782720+00:00","id":65148,"links":{},"metadata":{"_buckets":{"deposit":"d083bc8b-4c92-4df7-8d5d-47c8a8854a48"},"_deposit":{"created_by":1,"id":"65148","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"65148"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00065148","sets":["10:29"]},"author_link":["641900","641884","641894","641902","641886","641896","641890","641893","641888","641885","641891","641901","641903","641883","641897","641898","641889","641892","641904","641895","641899","641887"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2013-01-21","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"PET/MRI統合スキャナは、PETの機能情報、MRIの構造情報、MRIの機能情報といった複数のコントラストを同一機種で撮像できる特性を有しているため、診断能の向上や新しい研究分野の開拓と発展が期待されている。PET画像再構成では、生体組織によって吸収されるガンマ線の影響を補正するために、ガンマ線吸収係数(μ値)の空間分布(μマップ)が必要となる。現在普及しているPET/CTスキャナではCTで捉えたX線の吸収係数を関数によりガンマ線のものに変換することにより補正に用いることができるが、MRIの画素値は放射線の吸収係数を反映しないためそのまま用いることはできない。そこで、MRI画像における個々の被験者の解剖学的な情報をもとに、ガンマ線吸収補正を行う試みがなされている 。\n本稿では、著者らが開発したμマップ作成法であるハイブリッドセグメンテーションアトラス法(Hybrid segmentation atlas method: HSAM)を紹介する。さらに、μマップ作成法の違いがPET再構成画像の画素値に及ぼす影響と組織ごとの吸収係数の誤差が画素値に及ぼす影響も調査する。","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":"平成24年度 次世代PET研究会","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":"川口, 拓之"}],"nameIdentifiers":[{"nameIdentifier":"641883","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"谷川, 明日香"}],"nameIdentifiers":[{"nameIdentifier":"641884","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"菅, 幹生"}],"nameIdentifiers":[{"nameIdentifier":"641885","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"平野, 祥之"}],"nameIdentifiers":[{"nameIdentifier":"641886","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"白石, 貴博"}],"nameIdentifiers":[{"nameIdentifier":"641887","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉田, 英治"}],"nameIdentifiers":[{"nameIdentifier":"641888","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"木村, 泰之"}],"nameIdentifiers":[{"nameIdentifier":"641889","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"谷本, 克之"}],"nameIdentifiers":[{"nameIdentifier":"641890","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小畠, 隆行"}],"nameIdentifiers":[{"nameIdentifier":"641891","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"伊藤, 浩"}],"nameIdentifiers":[{"nameIdentifier":"641892","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山谷, 泰賀"}],"nameIdentifiers":[{"nameIdentifier":"641893","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"川口 拓之","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"641894","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"谷川 明日香","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"641895","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"菅 幹生","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"641896","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"平野 祥之","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"641897","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"白石 貴博","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"641898","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉田 英治","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"641899","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"木村 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object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"MR画像に基づくPET吸収補正法の開発と評価","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"MR画像に基づくPET吸収補正法の開発と評価"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2013-09-24"},"publish_date":"2013-09-24","publish_status":"0","recid":"65148","relation_version_is_last":true,"title":["MR画像に基づくPET吸収補正法の開発と評価"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T21:03:29.794903+00:00"}