{"created":"2023-05-15T14:37:17.937668+00:00","id":48093,"links":{},"metadata":{"_buckets":{"deposit":"e138812a-a7e1-4dec-ab4e-2cad2958a512"},"_deposit":{"created_by":1,"id":"48093","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"48093"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00048093","sets":["1"]},"author_link":["482929","482933","482928","482934","482930","482927","482926","482931","482925","482932"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2016-12","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"46","bibliographicPageStart":"38","bibliographicVolumeNumber":"33","bibliographic_titles":[{"bibliographic_title":"Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Purpose\nPancreatic tumor treatment dose distribution variations associated with supine and prone patient positioning were evaluated.\n\\nMethods\nA total of 33 patients with pancreatic tumors who underwent CT in the supine and prone positions were analyzed retrospectively. Gross tumor volume (GTV), planning target volume (PTV), and organs at risk (OARs) (duodenum and stomach) were contoured. The prescribed dose of 55.2 Gy (RBE) was planned from four beam angles (0°, 90°, 180°, and 270°). Patient collimator and compensating boli were designed for each field. Dose distributions were calculated for each field in the supine and prone positions. To improve dose distribution, patient positioning was selected from supine or prone for each beam field.\n\\nResults\nCompared with conventional beam angle and patient positioning, D2cc of 1st-2nd portion of duodenum (D1-D2), 3rd-4th portion of duodenum (D3-D4), and stomach could be reduced to a maximum of 6.4 Gy (RBE), 3.5 Gy (RBE), and 4.5 Gy (RBE) by selection of patient positioning. V10 of D1-D2, D3-D4, and stomach could be reduced to a maximum of 7.2 cc, 11.3 cc, and 11.5 cc, respectively. D95 of GTV and PTV were improved to a maximum of 6.9% and 3.7% of the prescribed dose, respectively.\n\\nConclusions\nOptimization of patient positioning for each beam angle in treatment planning has the potential to reduce OARs dose maintaining tumor dose in pancreatic treatment.","subitem_description_type":"Abstract"}]},"item_8_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Istituti Editoriali e Poligrafici Internazionali"}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1016/j.ejmp.2016.12.001","subitem_relation_type_select":"DOI"}}]},"item_8_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"http://www.physicamedica.com/article/S1120-1797(16)31100-0/fulltext"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://www.physicamedica.com/article/S1120-1797(16)31100-0/fulltext","subitem_relation_type_select":"URI"}}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1120-1797","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":"三木, 健太朗"}],"nameIdentifiers":[{"nameIdentifier":"482925","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"深堀, 麻衣"}],"nameIdentifiers":[{"nameIdentifier":"482926","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"熊谷, 始紀"}],"nameIdentifiers":[{"nameIdentifier":"482927","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山田, 滋"}],"nameIdentifiers":[{"nameIdentifier":"482928","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"森, 慎一郎"}],"nameIdentifiers":[{"nameIdentifier":"482929","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"三木 健太朗","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"482930","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"深堀 麻衣","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"482931","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"熊谷 始紀","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"482932","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山田 滋","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"482933","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"森 慎一郎","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"482934","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":"Effect of patient positioning on carbon-ion therapy planned dose distribution to pancreatic tumors and organs at risk","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Effect of patient positioning on carbon-ion therapy planned dose distribution to pancreatic tumors and organs at risk"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-07-13"},"publish_date":"2017-07-13","publish_status":"0","recid":"48093","relation_version_is_last":true,"title":["Effect of patient positioning on carbon-ion therapy planned dose distribution to pancreatic tumors and organs at risk"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T23:32:03.655812+00:00"}