{"created":"2023-05-15T14:35:07.527470+00:00","id":45320,"links":{},"metadata":{"_buckets":{"deposit":"0a5755cd-deac-480a-9b9a-2c464b1411ad"},"_deposit":{"created_by":1,"id":"45320","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"45320"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00045320","sets":["1"]},"author_link":["450231","450234","450228","450230","450233","450236","450232","450229","450235"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2008-08","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"7","bibliographicPageEnd":"421","bibliographicPageStart":"415","bibliographicVolumeNumber":"26","bibliographic_titles":[{"bibliographic_title":"Radiation Medicine"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Purpose: A comparative treatment planning study has been performed between carbon ion radiotherapy (CIRT) and photon radiotherapy [three-dimensional conformal radiotherapy (3D-CRT) and intensitymodulated radiotherapy (IMRT)] to assess the potential improvements and limitations that could result for locally advanced, nonresectable head and neck tumors.\nMaterials and methods: Seven patients, originally treated with CIRT, were randomly selected for the comparative study. The evaluations analyzed using dose-volume histogram parameters, conformity index, inhomogeneity coefficient, and dose to the organs  at risk (OARs). \nResults: The mean conformity index was 1.46,1.43,and 1.22 for 3D-CRT, IMRT,and CIRT, respectively. The mean inhomogeneity coefficient was 0.05,0.07,and 0.02 for 3D-CRT, IMRT,and CIRT respectively. Photon plans resulted in greater volumes of normal tissues at 10% to 95% isodose levels compared with the corresponding carbon ion plans where the volumes increased by a factor of 1.2 to 2.7 for 3D-CRT and 1.2 to 2.0 for IMRT.\nConclusion: CIRT has the potential to improve the target dose conformity inhomogeneity coefficient, and OAR sparing when compared with 3D-CRT and IMRT. Compared with 3D-CRT, normal tissue exposure was reduced mainly in the mid-to low-isodose levels using IMRT. Additional improvement was obtained using CIRT.","subitem_description_type":"Abstract"}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0288-2043","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":"Islam, Amirul"}],"nameIdentifiers":[{"nameIdentifier":"450228","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yanagi, Takeshi"}],"nameIdentifiers":[{"nameIdentifier":"450229","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Mizoe, Junetsu"}],"nameIdentifiers":[{"nameIdentifier":"450230","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Mizuno, Hideyuki"}],"nameIdentifiers":[{"nameIdentifier":"450231","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tsujii, Hirohiko"}],"nameIdentifiers":[{"nameIdentifier":"450232","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"柳 剛","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"450233","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"溝江 純悦","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"450234","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"水野 秀之","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"450235","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"辻井 博彦","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"450236","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":"Comparative study of dose distribution between carbon ion radiotherapy and photon radiotherapy for head and neck tumor","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Comparative study of dose distribution between carbon ion radiotherapy and photon radiotherapy for head and neck tumor"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2008-11-18"},"publish_date":"2008-11-18","publish_status":"0","recid":"45320","relation_version_is_last":true,"title":["Comparative study of dose distribution between carbon ion radiotherapy and photon radiotherapy for head and neck tumor"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-16T00:05:06.625762+00:00"}