{"created":"2023-05-15T12:10:14.720682+00:00","id":15903,"links":{},"metadata":{"_buckets":{"deposit":"68ced80f-c234-40b5-a30f-900206a45bb0"},"_deposit":{"created_by":19,"id":"15903","owners":[19],"pid":{"revision_id":0,"type":"depid","value":"15903"},"status":"published"},"_oai":{"id":"oai:iwate-u.repo.nii.ac.jp:00015903","sets":["1515:1519"]},"author_link":["95981","95717","95980","95716","95982","95719","95718","95983"],"item_16_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"Abstract","bibliographicPageStart":"280","bibliographicVolumeNumber":"Annual59","bibliographic_titles":[{"bibliographic_title":"生体医工学"},{"bibliographic_title":"Transactions of Japanese Society for Medical and Biological Engineering","bibliographic_titleLang":"en"}]}]},"item_16_date_6":{"attribute_name":"登録日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2023-01-30"}]},"item_16_description_11":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"心臓の電気的活動によって発生する磁界を非侵襲的に測定する方法として心磁図（MCG : Magnetocardiography）がある。心磁図による心臓活動の3次元的信号源推定は臨床応用に有用な技術である。現在、脳波や脳磁図を用いた脳活動の信号源推定手法には、最小ノルム法、ビームフォーマー法、LORETA法、eLORETA法など様々な空間フィルタ法が提案されている。しかしこれらの推定方法を心臓の信号源推定に応用した場合、同じ強度の信号源であっても深い信号源は浅い信号源よりも推定解が大きく広がる傾向にある。本研究では、心磁図を用いた心臓の電気的活動の推定として、推定信号源の局在化に優れたeLORETA法を用いた。我々は、信号源の深さによる推定解の広がりを抑制するため、複数測定面で計測したデータを用いて推定を行う手法を提案した。複数測定面で計測したデータを利用する2種類の空間フィルタ作製法を検討した。この結果、それぞれ異なる推定精度となり、提案方法により深い信号源の広がりを抑制できた。","subitem_description_type":"Abstract"}]},"item_16_description_12":{"attribute_name":"Abstract","attribute_value_mlt":[{"subitem_description":"Magnetocardiography (MCG) is a non-invasive method of measuring the magnetic field generated by the electrical heart activity. The source estimation by MCG is useful technics for clinical applications. Several spatial filter methods (minimum norm, beamformer, LORETA, eLORETA, etc) have been proposed to estimate the source of the brain activity. However, when these methods are applied to source estimation of the heart activity, deep sources tend to more expand the estimated solutions than shallow sources, even for the same intensity. In this study, we aimed to suppress the expanding of the estimated solution due to the depth of the source by using multi-sensor plane method. We performed the experiment with eLORETA to evaluate the proposed method and to compared two methods of making spatial filters. As a result, the estimation accuracy was different for each spatial filter, and the expansion of the deep source could be suppressed by the proposed method.","subitem_description_type":"Other"}]},"item_16_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"95980","nameIdentifierScheme":"WEKO"}],"names":[{"name":"ONO, Yuya"}]},{"nameIdentifiers":[{"nameIdentifier":"95981","nameIdentifierScheme":"WEKO"}],"names":[{"name":"IWAI, Morio"}]},{"nameIdentifiers":[{"nameIdentifier":"95982","nameIdentifierScheme":"WEKO"}],"names":[{"name":"SUN, Wenxu"}]},{"nameIdentifiers":[{"nameIdentifier":"95983","nameIdentifierScheme":"WEKO"}],"names":[{"name":"KOBAYASHI, Koichiro"}]}]},"item_16_link_13":{"attribute_name":"抄録（URL）","attribute_value_mlt":[{"subitem_link_text":"複数測定面による心磁図を用いた電流源推定における空間フィルタ作製法","subitem_link_url":"https://www.jstage.jst.go.jp/article/jsmbe/Annual59/Abstract/Annual59_280/_article/-char/ja/"}]},"item_16_publisher_14":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"日本生体医工学会"}]},"item_16_relation_26":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"info:doi/10.11239/jsmbe.Annual59.280","subitem_relation_type_select":"DOI"}}]},"item_16_rights_18":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"© 2021 日本生体医工学会"}]},"item_16_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"18814379","subitem_source_identifier_type":"ISSN"},{"subitem_source_identifier":"1347443X","subitem_source_identifier_type":"ISSN"}]},"item_16_text_4":{"attribute_name":"著者(機関)","attribute_value_mlt":[{"subitem_text_value":"岩手大学大学院総合科学研究科"},{"subitem_text_value":"岩手大学大学院総合科学研究科"},{"subitem_text_value":"近畿大学"},{"subitem_text_value":"岩手大学大学院総合科学研究科"}]},"item_16_version_type_27":{"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":"大野, 裕哉"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"岩井, 守生"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"孫, 文旭"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"小林, 宏一郎"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2023-01-30"}],"displaytype":"detail","filename":"tjsmbe-vannual59p280.pdf","filesize":[{"value":"1.3 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"tjsmbe-vannual59p280","url":"https://iwate-u.repo.nii.ac.jp/record/15903/files/tjsmbe-vannual59p280.pdf"},"version_id":"0054b027-6178-44ec-af35-0097f593b932"}]},"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":"複数測定面による心磁図を用いた電流源推定における空間フィルタ作製法","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"複数測定面による心磁図を用いた電流源推定における空間フィルタ作製法"},{"subitem_title":"Production Method of Spatial Filters for Source Estimation using MCG in Multi-Sensor Plane","subitem_title_language":"en"}]},"item_type_id":"16","owner":"19","path":["1519"],"pubdate":{"attribute_name":"公開日","attribute_value":"2023-01-30"},"publish_date":"2023-01-30","publish_status":"0","recid":"15903","relation_version_is_last":true,"title":["複数測定面による心磁図を用いた電流源推定における空間フィルタ作製法"],"weko_creator_id":"19","weko_shared_id":-1},"updated":"2023-05-15T12:40:22.518017+00:00"}