{"created":"2023-05-15T14:51:40.182765+00:00","id":70632,"links":{},"metadata":{"_buckets":{"deposit":"56fa057f-90a4-4c53-9a1a-31b75df759f0"},"_deposit":{"created_by":1,"id":"70632","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"70632"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00070632","sets":["10:28"]},"author_link":["693781","693785","693787","693779","693780","693788","693784","693786","693778","693777","693783","693782"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2011-11-19","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"【目的】陽子線の酸素増感比(OER)はX線のOERと著変ないと考えられているが，臨床用陽子線の拡大Bragg peak(SOBP)内のOER値は報告がない。本研究では実験的にOERを求め，このOER情報を患者治療計画に反映する必要性があるのかを検証した．\n【方法】HSG細胞を用い，臨床用陽子線(155MeV)でのplateau(入射)部分・SOBP内の3点・distal endの計5点におけるOERを解析した．SOBPは6cmとし, 照射1時間前に細胞を低酸素状態(＜0.2 mmHg)に置換後，低酸素状態のまま照射を行った．照射後コロニー形成法にて求めた細胞の生存率曲線から，10％細胞生存率を示す線量(D10) を求めた．大気条件下でも同様の照射を行い，D10値からOERを求めた．\n【結果】各点でのD10平均値から求めたOERは，plateau部分：2.53，SOBP中央より25mm手前部分：2.60，中央部分：2.63，中央より25mm後方の部分：2.76，distal end：2.39であった．\n【結論】照射計画において，SOBPのplateau部分やdistal endではOERが若干低いことを考慮する必要性が示唆されたが，SOBP内ではOERはほぼ均一であるとして扱ってよいことが分かった．","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"日本放射線腫瘍学会第24回学術大会","subitem_description_type":"Other"}]},"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":"金本, 彩恵"}],"nameIdentifiers":[{"nameIdentifier":"693777","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"平山, 亮一"}],"nameIdentifiers":[{"nameIdentifier":"693778","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"盛武, 敬"}],"nameIdentifiers":[{"nameIdentifier":"693779","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"孫, 略"}],"nameIdentifiers":[{"nameIdentifier":"693780","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"安岡, 聖"}],"nameIdentifiers":[{"nameIdentifier":"693781","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"古澤, 佳也"}],"nameIdentifiers":[{"nameIdentifier":"693782","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"榮, 武二"}],"nameIdentifiers":[{"nameIdentifier":"693783","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"坪井, 康次"}],"nameIdentifiers":[{"nameIdentifier":"693784","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"櫻井, 英幸"}],"nameIdentifiers":[{"nameIdentifier":"693785","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"平山 亮一","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"693786","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"古澤 佳也","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"693787","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"坪井 康次","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"693788","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"陽子線の拡大Bragg peakにおける酸素増感比の検討","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"陽子線の拡大Bragg peakにおける酸素増感比の検討"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2011-11-23"},"publish_date":"2011-11-23","publish_status":"0","recid":"70632","relation_version_is_last":true,"title":["陽子線の拡大Bragg peakにおける酸素増感比の検討"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T20:00:40.996575+00:00"}