{"created":"2023-06-28T07:20:34.843332+00:00","id":39,"links":{},"metadata":{"_buckets":{"deposit":"edd073e5-fa4a-4a99-9607-00475d2ffdcb"},"_deposit":{"created_by":2,"id":"39","owners":[2],"pid":{"revision_id":0,"type":"depid","value":"39"},"status":"published"},"_oai":{"id":"oai:gchs.repo.nii.ac.jp:00000039","sets":["10:11:15"]},"author_link":["322","321","332","338","323","330","337","325","329","334","327","331","336","333","335","326","328","324"],"item_3_alternative_title_12":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"急性期脳梗塞のCT画像所見の検出を目的とした撮影条件の適正化に関する基礎的検討"},{"subitem_alternative_title":"Evaluation of Ultra-Low Contrast Resolution Using a Digital Phantom of Our Own Making in 16-Section Multi-Detector Row Computed Tomography"},{"subitem_alternative_title":"Basic Study of Suitable Scan Parameters for Recognition of Subtle Findings of Acute Ischemic Stroke in Brain CT"}]},"item_3_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2009-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"45","bibliographicPageStart":"39","bibliographicVolumeNumber":"4","bibliographic_titles":[{"bibliographic_title":"群馬県立県民健康科学大学紀要"}]}]},"item_3_description_14":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"subitem_description":"Article","subitem_description_type":"Other"}]},"item_3_description_3":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"目的:我々は,CT装置における超低コントラスト分解能を評価するためのデジタルファントムを作成し,急性期脳梗塞のCT検査における撮影条件の適正化を検討した.方法:管電流時間積を変化させて水ファントムを撮影し,得られた水ファントム画像から,画像処理技術によって作成した超低コントラスト分解能用デジタル画像データを減算して,デジタルファントムを作成した.その後,デジタルファントムのウィンドウ幅を変化させて観察者実験を行い,超低コントラスト分解能について評価した.結果:超低コントラスト分解能を評価できるデジタルファントムを簡易的に低コスト且つ短時間で作成できた.また,頭部CT画像における撮影条件が,超低コントラスト分解能に及ぼす影響を定量的に求めることができた.結論:本研究において,本施設,本装置の最適な撮影条件を決定するための指標が得られ,急性期脳梗塞のCT検査における撮影条件の適正化の一助となる可能性が高い.","subitem_description_type":"Abstract"},{"subitem_description":"Objectives: In this study, digital phantoms for evaluation of ultra-low contrast resolution in CT were created, and CT scan parameters suitable for acute ischemic stroke were evaluated. Methods: The water phantom was first scanned using different mAs values. The digital phantom images were then derived by subtracting the digital image data for evaluation of ultra-low contrast resolution created using an image processing method from the obtained water phantom images. The digital phantom images, which changed the window width of the image display conditions, were displayed on the liquid crystal display monitor, and the observer study was performed in order to evaluate ultra-low contrast resolution. Results: In this study, the digital phantom images for evaluation of ultra-low contrast resolution could be created easily at low cost and in a short time. In addition, quantification of the relationship between the scan parameters in brain CT and ultra-low contrast resolution was made possible. Conclusions: The fundamental data for determining the optimal CT scan parameters for acute ischemic stroke in our institution using our CT scanner were obtained. Therefore, this study may be useful for reconsidering the CT scan parameters suitable for brain CT.","subitem_description_type":"Abstract"}]},"item_3_description_4":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"原著","subitem_description_type":"Other"}]},"item_3_description_5":{"attribute_name":"引用","attribute_value_mlt":[{"subitem_description":"群馬県立県民健康科学大学紀要 4,39-45,2009","subitem_description_type":"Other"}]},"item_3_publisher_13":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"群馬県立県民健康科学大学"}]},"item_3_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1881-0691","subitem_source_identifier_type":"ISSN"}]},"item_3_source_id_8":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12136570","subitem_source_identifier_type":"NCID"}]},"item_3_version_type_10":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"須永, 眞一"}],"nameIdentifiers":[{"nameIdentifier":"321","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"長島, 宏幸"}],"nameIdentifiers":[{"nameIdentifier":"322","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小林, 誠"}],"nameIdentifiers":[{"nameIdentifier":"323","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中重, 富夫"}],"nameIdentifiers":[{"nameIdentifier":"324","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小屋, 栄一"}],"nameIdentifiers":[{"nameIdentifier":"325","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"根岸, 徹"}],"nameIdentifiers":[{"nameIdentifier":"326","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"白石, 明久"}],"nameIdentifiers":[{"nameIdentifier":"327","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"川島, 康弘"}],"nameIdentifiers":[{"nameIdentifier":"328","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"原川, 哲美"}],"nameIdentifiers":[{"nameIdentifier":"329","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sunaga, Shinichi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"330","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nagashima, Hiroyuki","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"331","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kobayashi, Makoto","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"332","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nakajyu, Tomio","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"333","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Koya, Eiichi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"334","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Negishi, Toru","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"335","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Shiraishi, Akihisa","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"336","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kawashima, Yasuhiro","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"337","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Harakawa, Tetsumi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"338","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2021-03-09"}],"displaytype":"detail","filename":"KJ00005470056.pdf","filesize":[{"value":"654.9 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"KJ00005470056.pdf","url":"https://gchs.repo.nii.ac.jp/record/39/files/KJ00005470056.pdf"},"version_id":"93ef841b-4d80-4d92-8329-44ad09f982ea"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"頭部CT画像","subitem_subject_scheme":"Other"},{"subitem_subject":"急性期脳梗塞","subitem_subject_scheme":"Other"},{"subitem_subject":"早期CTサイン","subitem_subject_scheme":"Other"},{"subitem_subject":"超低コントラスト分解能","subitem_subject_scheme":"Other"},{"subitem_subject":"デジタルファントム","subitem_subject_scheme":"Other"},{"subitem_subject":"Brain Computed Tomography (CT) Image","subitem_subject_scheme":"Other"},{"subitem_subject":"Acute Ischemic Stroke","subitem_subject_scheme":"Other"},{"subitem_subject":"Early CT Sign","subitem_subject_scheme":"Other"},{"subitem_subject":"Ultra-Low Contrast Resolution","subitem_subject_scheme":"Other"},{"subitem_subject":"Digital Phantom","subitem_subject_scheme":"Other"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"16列マルチスライスCT装置における自作デジタルファントムを用いた超低コントラスト分解能の評価","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"16列マルチスライスCT装置における自作デジタルファントムを用いた超低コントラスト分解能の評価"}]},"item_type_id":"3","owner":"2","path":["15"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-02-17"},"publish_date":"2012-02-17","publish_status":"0","recid":"39","relation_version_is_last":true,"title":["16列マルチスライスCT装置における自作デジタルファントムを用いた超低コントラスト分解能の評価"],"weko_creator_id":"2","weko_shared_id":-1},"updated":"2023-06-28T07:25:47.196009+00:00"}