{"created":"2023-06-19T12:44:42.753268+00:00","id":4260,"links":{},"metadata":{"_buckets":{"deposit":"7b5adf22-3931-421c-8b8a-7603c9b66763"},"_deposit":{"created_by":3,"id":"4260","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"4260"},"status":"published"},"_oai":{"id":"oai:tokyo-metro-u.repo.nii.ac.jp:00004260","sets":["656:683:684"]},"author_link":["14272","14261","14264","14266","14268","14263","14265","14270","14262","14260","14271","14273","14267","14269"],"item_6_alternative_title_19":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"MRI Image Reconstruction Using Polar-coordinates Conversion of k-space Data"}]},"item_6_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012-04","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicPageEnd":"421","bibliographicPageStart":"413","bibliographicVolumeNumber":"68","bibliographic_titles":[{"bibliographic_title":"日本放射線技術学会雑誌"}]}]},"item_6_creator_2":{"attribute_name":"著者(ヨミ)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"タチバナ, アツシ"}],"nameIdentifiers":[{"nameIdentifier":"14265","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"ハシモト, タケユキ"}],"nameIdentifiers":[{"nameIdentifier":"14266","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"サカグチ, カズヤ"}],"nameIdentifiers":[{"nameIdentifier":"14267","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"オバタ, タカユキ"}],"nameIdentifiers":[{"nameIdentifier":"14268","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"シノハラ, ヒロユキ"}],"nameIdentifiers":[{"nameIdentifier":"14269","nameIdentifierScheme":"WEKO"}]}]},"item_6_creator_3":{"attribute_name":"著者別名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Tachibana, Atsushi"}],"nameIdentifiers":[{"nameIdentifier":"14270","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hashimoto, Takeyuki"}],"nameIdentifiers":[{"nameIdentifier":"14271","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sakaguchi, Kazuya"}],"nameIdentifiers":[{"nameIdentifier":"14272","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Shinohara, Hiroyuki"}],"nameIdentifiers":[{"nameIdentifier":"14273","nameIdentifierScheme":"WEKO"}]}]},"item_6_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In this study, we proposed the new reconstruction techniques for magnetic resonance imaging (MRI) using filtered back projection (FBP) or simultaneous reconstruction technique (SIRT). We converted the k-space which was acquired by conventional phase-encoding schemes from Cartesian coordinates to polar coordinates and created the projection. The linear interpolation and the sinc interpolation were used in the conversion. The accuracy of the reconstructed image using projection was evaluated by the relative error in comparison with the standard image which was reconstructed by the two-dimensional Fourier transform (2DFT) with conventional Cartesian k-space. The relative error reconstructed both FBP and SIRT from projection with sinc interpolation is 0.013. The maximum value of standard image is 1.501451, FBP is 1.47921, and SIRT with iteration 100 is 1.44858 and with iteration 200 is 1.579442. The minimum value of both the standard image and the others is about 0. Visually, there is no margin between the standard image and the reconstructed image from projection with FBP or SIRT.","subitem_description_type":"Abstract"}]},"item_6_description_40":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"subitem_description":"Article","subitem_description_type":"Other"}]},"item_6_publisher_33":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"日本放射線技術学会"}]},"item_6_rights_13":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"日本放射線技術学会"}]},"item_6_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00197784","subitem_source_identifier_type":"NCID"}]},"item_6_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03694305","subitem_source_identifier_type":"ISSN"}]},"item_6_version_type_16":{"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":"橘, 篤志"}],"nameIdentifiers":[{"nameIdentifier":"14260","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"橋本, 雄幸"}],"nameIdentifiers":[{"nameIdentifier":"14261","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"坂口, 和也"}],"nameIdentifiers":[{"nameIdentifier":"14262","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小畠, 隆行"}],"nameIdentifiers":[{"nameIdentifier":"14263","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"篠原, 広行"}],"nameIdentifiers":[{"nameIdentifier":"14264","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":"2016-08-04"}],"displaytype":"detail","filename":"10609-001.pdf","filesize":[{"value":"2.0 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"10609-001.pdf","url":"https://tokyo-metro-u.repo.nii.ac.jp/record/4260/files/10609-001.pdf"},"version_id":"1e4c69ff-4bad-4f74-aec5-93bb9cb44f4a"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"magnetic resonance imaging (MRI)","subitem_subject_scheme":"Other"},{"subitem_subject":"simultaneous reconstruction technique (SIRT)","subitem_subject_scheme":"Other"},{"subitem_subject":"iterative reconstruction","subitem_subject_scheme":"Other"},{"subitem_subject":"polar-coordinates conversion","subitem_subject_scheme":"Other"},{"subitem_subject":"projection","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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"k 空間データの極座標変換を用いたMRI 画像再構成法","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"k 空間データの極座標変換を用いたMRI 画像再構成法"}]},"item_type_id":"6","owner":"3","path":["684"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-09-07"},"publish_date":"2012-09-07","publish_status":"0","recid":"4260","relation_version_is_last":true,"title":["k 空間データの極座標変換を用いたMRI 画像再構成法"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-06-19T18:01:08.987916+00:00"}