{"created":"2023-05-15T14:38:07.948360+00:00","id":49200,"links":{},"metadata":{"_buckets":{"deposit":"1e673fce-73fb-41ee-9f9d-a12c17474542"},"_deposit":{"created_by":1,"id":"49200","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"49200"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00049200","sets":["1"]},"author_link":["804178","804183","804185","804177","804181","804182","804179","804184","804176","804180"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2018-09","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicPageEnd":"202","bibliographicPageStart":"196","bibliographicVolumeNumber":"36","bibliographic_titles":[{"bibliographic_title":"Medical Imaging Technology"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"高解像度診断用ディスプレイの実用化に伴い，ディスプレイの解像度に合わせて画像を拡大し，足りない解像度を補う必要があるが，MRIの解像度をハードウェアレベルで改善するには，長時間撮像を要し，患者の負担が大きい．そこで本研究では，MRI 画像を対象にスパースコーディング超解像処理（ScSR）を適用し，その有用性を検討した．頭部MRI画像のうちT1強調画像，T2強調画像，FLAIR画像，TOF画像を用いた．それぞれScSRおよび従来の拡大補間法を適用し，得られた高解像度画像のPSNR，SSIMを計測し，評価，比較した．T1強調画像，造影後T1強調画像，T2強調画像，FLAIR画像のすべてにおいて，ScSRのPSNR，SSIMともにBilinear，Bicubic，Lanczos補間と比較して有意に高値を示した（p<0.05）．TOF画像ではすべての再構成画像において，ScSRのPSNR，SSIMともにBilinear，Bicubic，Lanczosと比較して高値を示した．ScSRはMRIのT1，T2，FLAIR，TOF画像において，従来の拡大補間法よりも画像のピーク信号雑音比と構造的類似性を顕著に向上させることが示された．","subitem_description_type":"Abstract"}]},"item_8_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"学術新報社"}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.11409/mit.36.196","subitem_relation_type_select":"DOI"}}]},"item_8_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://www.jstage.jst.go.jp/article/mit/36/4/36_196/_article/-char/ja","subitem_relation_type_select":"URI"}}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0288-450X","subitem_source_identifier_type":"ISSN"}]},"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":"石丸, 直樹"}],"nameIdentifiers":[{"nameIdentifier":"804176","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"大田, 淳子"}],"nameIdentifiers":[{"nameIdentifier":"804177","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"梅原, 健輔"}],"nameIdentifiers":[{"nameIdentifier":"804178","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"鈴木, 崇師"}],"nameIdentifiers":[{"nameIdentifier":"804179","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"大野, 隼輔"}],"nameIdentifiers":[{"nameIdentifier":"804180","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"岡本, 健太郎"}],"nameIdentifiers":[{"nameIdentifier":"804181","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"石田, 隆行"}],"nameIdentifiers":[{"nameIdentifier":"804182","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ota, Junko","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"804183","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Umehara, Kensuke","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"804184","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ishida, Takayuki","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"804185","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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"MRI画像に対するスパースコーディング超解像処理の有用性","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"MRI画像に対するスパースコーディング超解像処理の有用性"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2018-10-09"},"publish_date":"2018-10-09","publish_status":"0","recid":"49200","relation_version_is_last":true,"title":["MRI画像に対するスパースコーディング超解像処理の有用性"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T23:41:36.688740+00:00"}