{"created":"2023-05-15T12:13:40.647929+00:00","id":108,"links":{},"metadata":{"_buckets":{"deposit":"89c50b9d-2c34-4002-8005-dc4cf0603392"},"_deposit":{"created_by":12,"id":"108","owners":[12],"pid":{"revision_id":0,"type":"depid","value":"108"},"status":"published"},"_oai":{"id":"oai:junshin.repo.nii.ac.jp:00000108","sets":["1:6:88:14"]},"author_link":["167","169","168"],"item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2015-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicPageEnd":"88","bibliographicPageStart":"77","bibliographic_titles":[{"bibliographic_title":"純真学園大学雑誌"},{"bibliographic_title":"Journal of Junshin Gakuen University, Faculty of Health Sciences","bibliographic_titleLang":"en"}]}]},"item_10002_description_19":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"要旨 : デジタルマンモグラフィーのモニタ診断における微細信号検出能向上を目的とした，白黒反転(階調反転)画像の有用性を検証した．代表的なデジタルマンモシステムである，CRおよび直接型FPDシステムを用いて，CDMAMファントムにより観察試料を作成し階調反転画像を併用した視覚評価実験を行った.観察は従来画像のみと従来画像に反転画像を併用した方法とで比較した．その結果，両デジタルマンモシステムにおいて階調反転画像を併用した観察法により，信号検出能は有意に向上した．特にノイズの影響を受けやすい低コントラストの信号においてその効果が大きかった．\nまた輝度計による観察試料の明度差測定においても，階調反転画像の方が従来画像に比べて大きな値を示し，階調反転の有用性を証明できた．本研究の結果をうけ，デジタルマンモグラフィのモニタ診断において，読影者による階調反転処理の併用により画像観察することで，有意に微細信号検出能が向上することが明らかとなった．乳がん早期発見に貢献できる新しい観察手法を提案する．\n\nThe aim of this study is to examine the usefulness of invert gray-scale images for improvement in subtle signal detectability in digital mammography using 5MP monochrome monitor. Visual evaluations were performed using images obtained with the CDMAM phantom using such digital mammography systems as CR and the direct type FPD systems. \nObserver performance studies were performed in two methods: One with gray-scale images alone and another with gray-scale images and invert gray-scale images. The result shows observers’ ability to detect subtle signal obtained using the new observing method mentioned above improved significantly (p<0.01) in both of CR and the direct type FPD systems. Particularly, in the signal of low contrast which is subject to be influenced by a display noise, the detectability improved. Brightness difference of digital images obtained with the CDMAM phantom were performed using the luminance meter. The direction of the invert gray-scale images showed larger value compared with the direction obtained with the gray-scale image, thus proving the usefulness of the invert gray-scale images. In accordance with the result of this research, invert gray-scale images in monitor diagnosis of digital mammography was used and the result shows a significant improvement in detectability to the subtle signals. We propose a new observation technique that is useful to an early detection of a breast cancer.","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"純真学園大学"}]},"item_10002_relation_12":{"attribute_name":"論文ID（NAID）","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"40020672080","subitem_relation_type_select":"NAID"}}]},"item_10002_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12581584","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2186-6481","subitem_source_identifier_type":"ISSN"}]},"item_10002_version_type_20":{"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":"井手口, 忠光"},{"creatorName":"イデグチ, タダミツ","creatorNameLang":"ja-Kana"},{"creatorName":"IDEGUCHI, TADAMITSU","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"167","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"9000312264556 ","nameIdentifierScheme":"CiNii ID","nameIdentifierURI":"http://ci.nii.ac.jp/nrid/9000312264556 "}]},{"creatorNames":[{"creatorName":"古田, 祐己"},{"creatorName":"フルタ, ユウキ","creatorNameLang":"ja-Kana"},{"creatorName":"FURUTA, YUHKI ","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"168","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"9000312264557","nameIdentifierScheme":"CiNii ID","nameIdentifierURI":"http://ci.nii.ac.jp/nrid/9000312264557"}]},{"creatorNames":[{"creatorName":"竹尾, 晃一"},{"creatorName":"タケオ, コウイチ","creatorNameLang":"ja-Kana"},{"creatorName":"TAKEO, KOUICHI ","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"169","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"9000312264558 ","nameIdentifierScheme":"CiNii ID","nameIdentifierURI":"http://ci.nii.ac.jp/nrid/9000312264558 "}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-06-29"}],"displaytype":"detail","filename":"純真学園大学雑誌-04号_p077-088.pdf","filesize":[{"value":"2.5 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"純真学園大学雑誌-04号_p077-088","url":"https://junshin.repo.nii.ac.jp/record/108/files/純真学園大学雑誌-04号_p077-088.pdf"},"version_id":"2fac0a68-9b0f-43c1-8e73-723ddf84fd38"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"デジタルマンモグラフィー","subitem_subject_scheme":"Other"},{"subitem_subject":"CDMAM","subitem_subject_scheme":"Other"},{"subitem_subject":"液晶モニタ","subitem_subject_scheme":"Other"},{"subitem_subject":"階調反転","subitem_subject_scheme":"Other"},{"subitem_subject":"検出能","subitem_subject_scheme":"Other"},{"subitem_subject_scheme":"Other"},{"subitem_subject":"Digital-Mammography","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"liquid crystal display (LCD)","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Invert grayscale","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Detectability","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject_language":"en","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":"Digital-Mammographyのモニタ診断における階調反転処理の有用性 : 特に微細信号検出能の向上について","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Digital-Mammographyのモニタ診断における階調反転処理の有用性 : 特に微細信号検出能の向上について"},{"subitem_title":"The Usefulness of the Invert Gray Scale in Digital-Mammography with 5MP Monochrome Monitor : Improvement in subtle signal detectability","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"12","path":["14"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-06-29"},"publish_date":"2017-06-29","publish_status":"0","recid":"108","relation_version_is_last":true,"title":["Digital-Mammographyのモニタ診断における階調反転処理の有用性 : 特に微細信号検出能の向上について"],"weko_creator_id":"12","weko_shared_id":-1},"updated":"2023-05-15T15:48:43.906777+00:00"}