{"created":"2023-05-15T15:00:07.631326+00:00","id":81596,"links":{},"metadata":{"_buckets":{"deposit":"2e78ce0c-361b-4ff0-a65d-ee9447897490"},"_deposit":{"created_by":1,"id":"81596","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"81596"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00081596","sets":["10:29"]},"author_link":["924080","924073","924082","924069","924078","924068","924074","924066","924075","924076","924072","924077","924070","924081","924065","924064","924079","924063","924067","924071"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2020-05-15","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"[Purpose] In the QST hospital, carbon ion radiotherapy (CIRT) using spot-scanning was started in 2011. In order to check each individual CIRT treatment plan and its treatment delivery, the scanning system and its treatment planning system require dosimetric patient-specific Quality Assurance (PQA) before CIRT. We report results of PQA in half year of 2017.\n[Methods] For the PQA, all the planned beams are recalculated on a water phantom with treatment planning software. The recalculated dose distributions are compared with the measured distributions using a 2D ionization chamber array at three depth, including 95% area of prescription dose. These are evaluated using 3%/3 mm gamma criteria with a pass threshold of 90%. We analyzed PQA results for about 1500 shots from September 2017 to March 2018, evaluated the pass rate for 10 disease sites with various target volume, energy and measurement depth.\n[Results] The pass rate for prostate, head and neck, and bone and soft tissue were 95.9%, 99.3%, and 91.5%, respectively. 95.9% of lung plans with low energy beam passed. Overall, 95% of the measured beams for all shots passed the gamma criteria, and were consistent with the plan. Although the rest of 5% failed the criteria, there were no dependence of measurements depth and disease sites in these failures.\n[Conclusion] The results of the PQA in the second half of FY2017 was analyzed. The overall quality assurance measurement passing rate was 95% for the gamma index criteria of 3%/3 mm. It was obvious that there was no disease sites or target dependency in these pass rates. Therefore, we could ensure the safety of the CIRT treatment plans.\n","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":"第119回日本医学物理学会学術大会","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":"猪俣, 麻美"}],"nameIdentifiers":[{"nameIdentifier":"924063","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"鈴木, 優維"}],"nameIdentifiers":[{"nameIdentifier":"924064","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"勝間田, 匡"}],"nameIdentifiers":[{"nameIdentifier":"924065","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中島, 猛雄"}],"nameIdentifiers":[{"nameIdentifier":"924066","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"古市, 渉"}],"nameIdentifiers":[{"nameIdentifier":"924067","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山岡, 恵士"}],"nameIdentifiers":[{"nameIdentifier":"924068","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"菅, 満喜人"}],"nameIdentifiers":[{"nameIdentifier":"924069","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山本, 淳史"}],"nameIdentifiers":[{"nameIdentifier":"924070","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"水野, 秀之"}],"nameIdentifiers":[{"nameIdentifier":"924071","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"河野, 良介"}],"nameIdentifiers":[{"nameIdentifier":"924072","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Asami, Inomata","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"924073","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yui, Suzuki","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"924074","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Masashi, Katsumata","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"924075","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nakajima, Takeo","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"924076","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Wataru, Furuichi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"924077","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Keisi, Yamaoka","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"924078","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Makito, Suga","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"924079","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Atsushi, Yamamoto","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"924080","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hideyuki, Mizuno","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"924081","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ryosuke, Kohno","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"924082","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":"Evaluation of Patient-specific Quality Assurance for Spot-Scanning Carbon Ion Radiotherapy","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Evaluation of Patient-specific Quality Assurance for Spot-Scanning Carbon Ion Radiotherapy"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-01-08"},"publish_date":"2021-01-08","publish_status":"0","recid":"81596","relation_version_is_last":true,"title":["Evaluation of Patient-specific Quality Assurance for Spot-Scanning Carbon Ion Radiotherapy"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T20:48:17.157651+00:00"}