{"created":"2023-06-19T07:39:07.851940+00:00","id":2788,"links":{},"metadata":{"_buckets":{"deposit":"48d2e644-4c62-4a10-8aa0-c29d01290977"},"_deposit":{"created_by":3,"id":"2788","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"2788"},"status":"published"},"_oai":{"id":"oai:mdu.repo.nii.ac.jp:00002788","sets":["178:204","193:242:258"]},"author_link":["4616"],"item_10001_alternative_title_1":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"フラットパネル検出器を用いた円錐ビームCT画像の均一性の評価"}]},"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2009-08","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"109","bibliographicPageStart":"101","bibliographicVolumeNumber":"18","bibliographic_titles":[{},{"bibliographic_title":"Journal of Hard Tissue Biology","bibliographic_titleLang":"en"}]}]},"item_10001_description_19":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Cone beam computed tomography (CBCT) with a flat panel detector can provide more precise and fine images compared to that with an image intensifier which have been used previously. Measurement of the length clearly varies among different measurement regions on the images of CBCT with an image intensifier. However, little is known whether measurement of the length on the images of CBCT with a flat panel detector varies as well or uniform. The objective of this study was, therefore, to analyze the homogeneity of the measurement of the length on the images of the CBCT with a flat panel detector. The results demonstrated that both short- and long-term reproducibility of measurement of the length on the CBCT images of the x-ray mesh gauge was less than 1.5%. The non-uniformity of measurement of the length on the CBCT images was less than 2% between any of two regions. The non-uniformity of measurement of the length on the CBCT images with φ60mm×h60mm exposed area was almost constant at any regions independent of the tube current. That on the CBCT images with φ40mm×h40mm exposed area varied randomly. The non-uniformity of measurement of the length varied randomly on the CBCT images with small exposed area; however, this was considerably small and negligible. The results suggest that measurement of the length on the images of CBCT with a flat panel detector may be substantially uniform at any regions in comparison with that on the images of CBCT with an image intensifier. ","subitem_description_type":"Abstract"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Society for Hard Tissue Regenerative Biology (硬組織再生生物学会)"}]},"item_10001_relation_12":{"attribute_name":"NII論文ID","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10025927855","subitem_relation_type_select":"NAID"}}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"info:doi/10.2485/jhtb.18.101"}],"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.2485/jhtb.18.101","subitem_relation_type_select":"DOI"}}]},"item_10001_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"雑誌掲載論文(電子版) "}]}]},"item_10001_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"Jstage"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.2485/jhtb.18.101","subitem_relation_type_select":"DOI"}}]},"item_10001_relation_24":{"attribute_name":"医中誌ID","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"2010071420","subitem_relation_type_select":"ICHUSHI"}}]},"item_10001_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"© 2009 by The Hard Tissue Biology Network Association(JHTBNet) "}]},"item_10001_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11074332","subitem_source_identifier_type":"NCID"}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1341-7649","subitem_source_identifier_type":"ISSN"}]},"item_10001_text_25":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_text_value":"フラットパネル検出器を用いた円錐ビーム(CB)CTの画像における長さ測定の均一性を分析した。CBCT画像によるX線メッシュゲージの長さを測定したところ、短期、長期両方の再現性は1.5%未満であった。CBCT画像上の長さ測定の不均一性は、どの2つの領域間においても、2%未満であった。φ60mmxh60mmの曝露面積のCBCT画像における長さ測定の不均一性は、管電流と無関係のあらゆる領域でほぼ一定であった。φ40mmxh40mmの曝露面積のCBCT画像における不均一性はランダムに変動した。長さ測定の不均一性は小曝露面積のCBCT画像上においてランダムに変動した。しかし、この変動は極わずかであり、無視できると考えられた。フラットパネル検出器を用いたCBCT画像による長さ測定は、画像増強装置を用いたCBCT画像と比較して、あらゆる領域で実質的に均一であることが示唆された。"}]},"item_10001_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":"Sugino, Noriyuki"}],"nameIdentifiers":[{"nameIdentifier":"4616","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":"2019-02-20"}],"displaytype":"detail","filename":"2018-ja-007.pdf","filesize":[{"value":"519.4 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"本文","url":"https://mdu.repo.nii.ac.jp/record/2788/files/2018-ja-007.pdf"},"version_id":"bcbb65e4-132f-4ea1-afe3-31f508f03109"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"感度と特異度","subitem_subject_scheme":"Other"},{"subitem_subject":"口腔診断","subitem_subject_scheme":"Other"},{"subitem_subject":"X線CT","subitem_subject_scheme":"Other"},{"subitem_subject":"画像ファントム","subitem_subject_scheme":"Other"},{"subitem_subject":"結果再現性","subitem_subject_scheme":"Other"},{"subitem_subject":"診断用機器","subitem_subject_scheme":"Other"},{"subitem_subject":"フラットパネルディテクタ\\n","subitem_subject_scheme":"Other"},{"subitem_subject":"Computed tomography","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Cone beam","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Flat panel detector","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Homogeneity","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"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":"Evaluation of Homogeneity on Cone Beam Computed Tomography Imaging with Flat Panel Detector","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Evaluation of Homogeneity on Cone Beam Computed Tomography Imaging with Flat Panel Detector","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"3","path":["204","258"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-02-20"},"publish_date":"2019-02-20","publish_status":"0","recid":"2788","relation_version_is_last":true,"title":["Evaluation of Homogeneity on Cone Beam Computed Tomography Imaging with Flat Panel Detector"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-06-19T07:56:19.308668+00:00"}