{"created":"2021-03-01T05:59:59.425303+00:00","id":7537,"links":{},"metadata":{"_buckets":{"deposit":"9dfb8bbe-1d54-4544-9d5a-a6bd1e73bc1a"},"_deposit":{"id":"7537","owners":[],"pid":{"revision_id":0,"type":"depid","value":"7537"},"status":"published"},"_oai":{"id":"oai:kitami-it.repo.nii.ac.jp:00007537","sets":["1:87"]},"author_link":["38569","38570","38571","38572"],"item_1646810750418":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_3_biblio_info_186":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2013-02","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"73","bibliographicPageStart":"63","bibliographicVolumeNumber":"115","bibliographic_titles":[{"bibliographic_title":"Oral surgery, oral medicine, oral pathology, oral radiology","bibliographic_titleLang":"en"}]}]},"item_3_description_184":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Objective: To reduce metal-induced streak artifact on oral and maxillofacial X-ray CT (computed tomography) images by developing the fast statistical image reconstruction system using iterative reconstruction algorithms.\nStudy design: Adjacent CT images often depict similar anatomical structures in thin slices. So firstly images were reconstructed using the same projection data of an artifact-free image. Secondly images were processed by the successive iterative restoration method where projection data was generated from reconstructed image in sequence. Besides the maximum likelihood-expectation maximization algorithm, the ordered subset-expectation maximization algorithm (OS-EM) was examined. Also small ROI setting and reverse processing were applied for improving performance.\nResults: Both algorithms reduced artifacts instead of slightly decreasing gray levels. The OS-EM and small ROI reduced the processing duration without apparent detriments. Sequential and reverse processing didn’t show apparent effects.\nConclusions: Two alternatives in iterative reconstruction methods were effective for artifacts reduction. The OS-EM algorithm and small ROI setting improved the performance.","subitem_description_type":"Abstract"}]},"item_3_publisher_212":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Elsevier"}]},"item_3_relation_191":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1016/j.oooo.2012.07.436","subitem_relation_type_select":"DOI"}}]},"item_3_select_195":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"author"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Dong, Jian","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hayakawa, Yoshihiko","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kannenberg, Sven","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kober, Comelia","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-11-22"}],"displaytype":"detail","filename":"Dong_Hayakawa_etal_OOOOjournal_Feb2013-1.pdf","filesize":[{"value":"2.2 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"Dong_Hayakawa_etal_OOOOjournal_Feb2013-1.pdf","url":"https://kitami-it.repo.nii.ac.jp/record/7537/files/Dong_Hayakawa_etal_OOOOjournal_Feb2013-1.pdf"},"version_id":"1e7a7350-fd54-47ed-b4c7-1781b84d1c26"}]},"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":"Metal-induced streak artifact reduction using iterative reconstruction algorithms in X-ray CT image of the dento-alveolar region","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Metal-induced streak artifact reduction using iterative reconstruction algorithms in X-ray CT image of the dento-alveolar region","subitem_title_language":"en"}]},"item_type_id":"3","owner":"1","path":["87"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2013-02-27"},"publish_date":"2013-02-27","publish_status":"0","recid":"7537","relation_version_is_last":true,"title":["Metal-induced streak artifact reduction using iterative reconstruction algorithms in X-ray CT image of the dento-alveolar region"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-13T02:20:58.436313+00:00"}