{"created":"2023-05-15T14:46:51.592888+00:00","id":64288,"links":{},"metadata":{"_buckets":{"deposit":"2c9f9f2a-e268-42f2-bb95-906649d7b24c"},"_deposit":{"created_by":1,"id":"64288","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"64288"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00064288","sets":["10:29"]},"author_link":["633965","633971","633961","633964","633955","633954","633966","633969","633952","633958","633970","633957","633953","633959","633963","633956","633960","633968","633962","633967"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2011-08-06","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"リアルタイムPETイメージングを検出器リング間に物理的な開放空間を持つOpenPETによって行うことで、放射線治療中リアルタイムに腫瘍追跡や放射能分布の測定が可能となる。本研究では、画像再構成の高速化のために3D one-pass list-mode DRAMAを、GPGPUの技術を用いて実装し、また、安定化のためにデータ転送制御システムを導入したアーキテクチャを提案し実装を行った。開発したシステムでは、再構成処理で使用されるデータ量の上限を再構成の処理速度に応じて設定し、定量性確保のために使用したデータ量と検出されたデータ量の比によって再構成像を補償する。今回、提案システムをOpenPET小型試作機に実装し、線源追跡の性能評価を行った。その結果、大きな遅延なく毎秒2フレーム以上での再構成像の表示が可能で、表示された画像強度がカウントレートの変化に追随して変化していることを確認した。","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30回日本医用画像工学会大会","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":"田島, 英朗"}],"nameIdentifiers":[{"nameIdentifier":"633952","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉田, 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