{"created":"2023-05-15T14:57:29.917953+00:00","id":78030,"links":{},"metadata":{"_buckets":{"deposit":"4a3b2ac4-2bbb-476e-8d47-45c79fad3a99"},"_deposit":{"created_by":1,"id":"78030","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"78030"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00078030","sets":["1"]},"author_link":["1007651","1007653","1007649","1007650","1007652"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-12","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"12","bibliographicPageEnd":"5832","bibliographicPageStart":"5824","bibliographicVolumeNumber":"46","bibliographic_titles":[{"bibliographic_title":"Medical physics"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"PURPOSE: To estimate out-of-field doses during carbon-ion radiotherapy (CIRT) for pediatric cerebellar ependymoma.\nMETHODS: Given that the out-of-field dose of CIRT depends on beam parameters, we set them for treatment of typical pediatric cerebellar ependymoma based on a previous study. The out-of-field dose during CIRT for pediatric cerebellar ependymoma was then estimated using the Particle and Heavy-Ion Transport code System with Monte Carlo simulations and a computational phantom developed at the University of Florida. From the simulation results, out-of-field doses at dose equivalents of passive beam and active scanning beam CIRT were calculated and compared to the secondary neutron-equivalent dose of passive beam CIRT and proton therapy.\nRESULTS: The out-of-field dose equivalent decreases from 1.45 mSv/Gy (relative biological effectiveness - RBE) at the thyroid to 0.06 mSv/Gy (RBE) at the bladder, verifying decay as the distance from the treatment target increases. The out-of-field neutron-equivalent dose in organs per prescribed dose for passive beam CIRT is lower than that for passive beam proton therapy. Moreover, the out-of-field organ dose equivalent per prescribed dose for the active scanning beam CIRT is lower than that for the passive beam CIRT.\nCONCLUSIONS: Active scanning beam CIRT is promising for pediatric cerebellar ependymoma regarding out-of-field exposure, outperforming the comparison radiotherapy modalities.","subitem_description_type":"Abstract"}]},"item_8_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"John Wiley and Sons, Inc."}]},"item_8_relation_13":{"attribute_name":"PubMed番号","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"31603561","subitem_relation_type_select":"PMID"}}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1002/mp.13864","subitem_relation_type_select":"DOI"}}]},"item_8_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://aapm.onlinelibrary.wiley.com/doi/full/10.1002/mp.13864","subitem_relation_type_select":"URI"}}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0094-2405","subitem_source_identifier_type":"ISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Matsumoto, Shinnosuke"}],"nameIdentifiers":[{"nameIdentifier":"1007649","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yonai, Shunsuke"}],"nameIdentifiers":[{"nameIdentifier":"1007650","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"E Bolch, Wesley"}],"nameIdentifiers":[{"nameIdentifier":"1007651","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Shinnosuke, Matsumoto","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"1007652","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Shunsuke, Yonai","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"1007653","nameIdentifierScheme":"WEKO"}]}]},"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":"Monte Carlo study of out-of-field exposure in carbon-ion radiotherapy: Organ doses in pediatric brain tumor treatment.","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Monte Carlo study of out-of-field exposure in carbon-ion radiotherapy: Organ doses in pediatric brain tumor treatment."}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-12-17"},"publish_date":"2019-12-17","publish_status":"0","recid":"78030","relation_version_is_last":true,"title":["Monte Carlo study of out-of-field exposure in carbon-ion radiotherapy: Organ doses in pediatric brain tumor treatment."],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T19:15:22.208842+00:00"}