{"created":"2023-05-15T14:35:55.280012+00:00","id":46222,"links":{},"metadata":{"_buckets":{"deposit":"df3d89c0-34d5-41a6-89fc-1af0a3367b5a"},"_deposit":{"created_by":1,"id":"46222","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"46222"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00046222","sets":["1"]},"author_link":["460277","460281","460265","460282","460271","460267","460269","460278","460268","460264","460272","460266","460274","460279","460275","460276","460280","460270","460273"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2011-06","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"607","bibliographicPageStart":"597","bibliographicVolumeNumber":"80","bibliographic_titles":[{"bibliographic_title":"International Journal of Radiation Oncology Biology Physics"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"PURPOSE: We compared four-dimensional (4D) layer-stacking and conventional carbon ion beam distribution in the treatment of lung cancer between ungated and gated respiratory strategies using 4DCT data sets.\n\\nMETHODS AND MATERIALS: Twenty lung patients underwent 4DCT imaging under free-breathing conditions. Using planning target volumes (PTVs) at respective respiratory phases, two types of compensating bolus were designed, a full single respiratory cycle for the ungated strategy and an approximately 30% duty cycle for the exhalation-gated strategy. Beams were delivered to the PTVs for the ungated and gated strategies, PTV(ungated) and PTV(gated), respectively, which were calculated by combining the respective PTV(Tn)s by layer-stacking and conventional irradiation. Carbon ion beam dose distribution was calculated as a function of respiratory phase by applying a compensating bolus to 4DCT. Accumulated dose distributions were calculated by applying deformable registration.\n\\nRESULTS: With the ungated strategy, accumulated dose distributions were satisfactorily provided to the PTV, with D95 values for layer-stacking and conventional irradiation of 94.0% and 96.2%, respectively. V20 for the lung and Dmax for the spinal cord were lower with layer-stacking than with conventional irradiation, whereas Dmax for the skin (14.1 GyE) was significantly lower (21.9 GyE). In addition, dose conformation to the GTV/PTV with layer-stacking irradiation was better with the gated than with the ungated strategy.\n\\nCONCLUSIONS: Gated layer-stacking irradiation allows the delivery of a carbon ion beam to a moving target without significant degradation of dose conformity or the development of hot spots","subitem_description_type":"Abstract"}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0360-3016","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":"Mori, Shinichiro"}],"nameIdentifiers":[{"nameIdentifier":"460264","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kanematsu, Nobuyuki"}],"nameIdentifiers":[{"nameIdentifier":"460265","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Asakura, Hiroshi"}],"nameIdentifiers":[{"nameIdentifier":"460266","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Gregory, Sharp"}],"nameIdentifiers":[{"nameIdentifier":"460267","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kumagai, Motoki"}],"nameIdentifiers":[{"nameIdentifier":"460268","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Dobashi, Suguru"}],"nameIdentifiers":[{"nameIdentifier":"460269","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nakajima, Mio"}],"nameIdentifiers":[{"nameIdentifier":"460270","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yamamoto, Naoyoshi"}],"nameIdentifiers":[{"nameIdentifier":"460271","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kandatsu, Susumu"}],"nameIdentifiers":[{"nameIdentifier":"460272","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Baba, Masayuki"}],"nameIdentifiers":[{"nameIdentifier":"460273","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"森 慎一郎","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460274","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"兼松 伸幸","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460275","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"浅倉 裕史","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460276","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"熊谷 始紀","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460277","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"土橋 卓","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460278","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中嶋 美緒","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460279","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山本 直敬","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460280","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"神立 進","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460281","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"馬場 雅行","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460282","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":"Four-dimensional Lung Treatment Planning in Layer-stacking Carbon Ion Beam Treatment: Comparison of Layer-stacking and Conventional Ungated/Gated Irradiation","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Four-dimensional Lung Treatment Planning in Layer-stacking Carbon Ion Beam Treatment: Comparison of Layer-stacking and Conventional Ungated/Gated Irradiation"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2011-12-15"},"publish_date":"2011-12-15","publish_status":"0","recid":"46222","relation_version_is_last":true,"title":["Four-dimensional Lung Treatment Planning in Layer-stacking Carbon Ion Beam Treatment: Comparison of Layer-stacking and Conventional Ungated/Gated Irradiation"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T23:54:25.245001+00:00"}