{"created":"2023-07-27T06:29:06.515401+00:00","id":13789,"links":{},"metadata":{"_buckets":{"deposit":"fab6dc6e-23e8-40bf-8a79-c3b49e354037"},"_deposit":{"created_by":3,"id":"13789","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"13789"},"status":"published"},"_oai":{"id":"oai:kanazawa-u.repo.nii.ac.jp:00013789","sets":["4281:4291:4312"]},"author_link":["23188","299","23185","3018","21909","23184","646","13121","23186","2896"],"item_4_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2010-01-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"PART 3","bibliographicPageStart":"76224S","bibliographicVolumeNumber":"7622","bibliographic_titles":[{"bibliographic_title":"Progress in Biomedical Optics and Imaging - Proceedings of SPIE"}]}]},"item_4_creator_33":{"attribute_name":"著者別表示","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"田中, 利恵"}],"nameIdentifiers":[{},{},{},{}]},{"creatorNames":[{"creatorName":"市川, 勝弘"}],"nameIdentifiers":[{},{},{},{}]},{"creatorNames":[{"creatorName":"川嶋, 広貴 "}],"nameIdentifiers":[{},{}]},{"creatorNames":[{"creatorName":"真田, 茂"}],"nameIdentifiers":[{},{}]}]},"item_4_description_21":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"There is a concern that image lag may reduce accuracy of real-time target tracking in radiotherapy. This study was performed to investigate influence of image lag on the accuracy of target tracking in radiotherapy. Fluoroscopic image: were obtained using a direct type of dynamic flat-panel detector (FPD) system under conditions of target tracking during radiotherapy. The images continued to be read out after X-irradiations and cutoff, and image lag properties in the system were then determined. Subsequently, a tungsten materials plate with a precision edge was mounted on to a motor control device, which provided a constant velocity. The plate was moved into the center of the detector at movement rate of 1 and 20 mm/s, covering lung tumor movement of normal breathing, and MTF and profile curves were measured on the edges covering and uncovering the detector. A lung tumor with blurred edge due to image lag was simulated using the results and then superimposed on breathing chest radiographs of a patient. The moving target with and without image lag was traced using a template-matching technique. In the results, the target could be traced within a margin for error ii external radiotherapy. The results indicated that there was no effect of image lag on target tracking in usual breathing speed in a radiotherapy situation. Further studies are required to investigate influence by the other factors, such a: exposure dose, target size and shape, imaging rate, and thickness of a patient's body. © 2010 SPIE.","subitem_description_type":"Abstract"}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.24517/00013776","subitem_identifier_reg_type":"JaLC"}]},"item_4_publisher_17":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Society of Photo-optical Instrumentation Engineers (SPIE)"}]},"item_4_relation_12":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1117/12.844202","subitem_relation_type_select":"DOI"}}]},"item_4_rights_24":{"attribute_name":"権利URI","attribute_value_mlt":[{"subitem_rights":"http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=747539"}]},"item_4_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1605-7422","subitem_source_identifier_type":"ISSN"}]},"item_4_version_type_25":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Tanaka, Rie"}],"nameIdentifiers":[{},{},{},{}]},{"creatorNames":[{"creatorName":"Ichikawa, Katsuhiro"}],"nameIdentifiers":[{},{},{},{}]},{"creatorNames":[{"creatorName":"Mori, Shinichiro"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Dobashi, Suguru"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kumagaya, Motoki"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kawashima, Hiroki"}],"nameIdentifiers":[{},{}]},{"creatorNames":[{"creatorName":"Morita, Shinichi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sanada, Shigeru"}],"nameIdentifiers":[{},{},{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-10-03"}],"displaytype":"detail","filename":"ME-PR-TANAKA-R-76224S.PDF","filesize":[{"value":"442.8 kB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"ME-PR-TANAKA-R-76224S.PDF","url":"https://kanazawa-u.repo.nii.ac.jp/record/13789/files/ME-PR-TANAKA-R-76224S.PDF"},"version_id":"07fd86ce-035e-46f7-a355-00bb1e3d8ecf"}]},"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":"Effects of image lag on real-time target tracking in radiotherapy","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Effects of image lag on real-time target tracking in radiotherapy"}]},"item_type_id":"4","owner":"3","path":["4312"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-10-03"},"publish_date":"2017-10-03","publish_status":"0","recid":"13789","relation_version_is_last":true,"title":["Effects of image lag on real-time target tracking in radiotherapy"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-07-27T08:48:12.304026+00:00"}