{"created":"2023-05-15T14:35:34.866261+00:00","id":45754,"links":{},"metadata":{"_buckets":{"deposit":"ec41a610-78c6-4607-a7d8-f46980fbd647"},"_deposit":{"created_by":1,"id":"45754","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"45754"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00045754","sets":["1"]},"author_link":["454774","454779","454771","454773","454770","454769","454775","454772","454776","454777","454778"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2010-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"33","bibliographicPageStart":"23","bibliographicVolumeNumber":"3","bibliographic_titles":[{"bibliographic_title":"Radiological Physics and Technology"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We have developed new design algorithms for compensating boli to facilitate the implementation of four-dimensional charged-particle lung therapy in clinical applications. Four-dimensional CT (4DCT) data for eight lung cancer patients were acquired with a 16-slice CT under free breathing. Six compensating boli were developed that may be categorized into three classes, i) boli-based on contoured gross tumor volumes (GTV) from a 4DCT data set during each respiratory phase, subsequently combined into one (GTV-4DCT bolus); ii) boli-based on contoured internal target volume (ITV) from image-processed 3DCT data only [temporal-maximum-intensity-projection (TMIP)/ temporal-average-intensity-projection (TAIP)] with calculated boli (ITV-TMIP and ITV-TAIP boli); and iii) boli-based on contoured ITV utilizing image-processed 3DCT data, applied to 4DCT for design of boli for each phase, which were then combined. The carbon beam dose distribution within each bolus was calculated as a function of time and compared to plans in which respiratory-ungated/gated strategies were used. The GTV-4DCT treatment plan required a prohibitively long time for contouring the GTV manually for each respiratory phase, but it delivered more than 95% of the prescribed dose to the target volume. The TMIP and TAIP treatments, although more time-efficient, resulted in an unacceptable excess dose to normal tissues and underdosing of the target volume. The dose distribution for the ITV-4DCT bolus was similar to that for the GTV-4DCT bolus and required significantly less practitioner time. The ITV-4DCT bolus treatment plan is time-efficient and provides a high-quality dose distribution, making it a practical alternative to the GTV-4DCT bolus treatment plan.","subitem_description_type":"Abstract"}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1865-0333","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":"454769","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kumagai, Motoki"}],"nameIdentifiers":[{"nameIdentifier":"454770","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Dobashi, Suguru"}],"nameIdentifiers":[{"nameIdentifier":"454771","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sugane, Toshio"}],"nameIdentifiers":[{"nameIdentifier":"454772","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Baba, Masayuki"}],"nameIdentifiers":[{"nameIdentifier":"454773","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"et.al"}],"nameIdentifiers":[{"nameIdentifier":"454774","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"森 慎一郎","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"454775","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"熊谷 始紀","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"454776","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"土橋 卓","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"454777","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"須金 紀雄","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"454778","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"馬場 雅行","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"454779","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":"Practical Approaches to Four-dimensional  Heavy-Charged-Particle Lung Therapy","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Practical Approaches to Four-dimensional  Heavy-Charged-Particle Lung Therapy"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2010-02-09"},"publish_date":"2010-02-09","publish_status":"0","recid":"45754","relation_version_is_last":true,"title":["Practical Approaches to Four-dimensional  Heavy-Charged-Particle Lung Therapy"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T23:59:59.314545+00:00"}