{"created":"2021-03-01T06:13:47.792760+00:00","id":9704,"links":{},"metadata":{"_buckets":{"deposit":"2ed5ccd1-d079-4d26-b549-de53ae75b769"},"_deposit":{"id":"9704","owners":[],"pid":{"revision_id":0,"type":"depid","value":"9704"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00009704","sets":["453:456","471:537:538:943"]},"item_7_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"A Carving Method to Determine an Optimal Working Projection Using Three-dimensional Volume Rendering Digital Subtraction Angiography in Coil Embolization of Cerebral Aneurysms"}]},"item_7_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012-05","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"5","bibliographicPageEnd":"247","bibliographicPageStart":"238","bibliographicVolumeNumber":"126","bibliographic_titles":[{"bibliographic_title":"新潟医学会雑誌"},{"bibliographic_title":"新潟医学会雑誌","bibliographic_titleLang":"en"}]}]},"item_7_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"【はじめに】脳動脈瘤のコイル塞栓術時に使用する working projection は, 3-dimentional rotational angiography (3D RA) を用いて決定することが多い. 通常の方法では動脈瘤と母血管の境界を前面からしか確認できないため, 後面の境界を同時に観察できず, working projection が不正確になる可能性がある. そこで我々は, 動脈瘤と母血管の境界を明確に表示し, より正確な working projection を決定する方法 (切り出し法) を考案した. 【方法】2005年9月から2010年2月に当科でコイル塞栓術を行い3D RAのデータがある83例を対象とした. Work station 上で3D RA画像を元に動脈瘤と母血管の境界を4方向から観察し, 動脈瘤だけを正確に切り出した. 切り出した動脈瘤に translucent mode の母血管と動脈瘤とをfusionさせた (切り出し法). 動脈瘤が母血管と接している面積と, 実際の治療に使用した working projection で観察される動脈瘤の底面積の比を working projection のずれ割合として評価した. さらにどのような動脈瘤でより切り出し法が有用であるかを統計学的に検討した. 【結果】対象とした全動脈瘤で切り出し法を行うことができ, 実際の治療時と切り出し法による working projection が一致した症例は32例 (38.6%) であった. 母血管と動脈瘤の位置関係により terminal type, side wall type, その他に分類すると, この3群間でずれ割合に有意差があり (p <0.05), terminal type で治療時の working projection がより正確であった. また, 最大径が5mm未満の動脈瘤は, 5mm以上の動脈瘤に比べ, ずれ割合が有意に大きかった (p <0.05). 【考察】切り出し法を用いると治療時の working projection の半数以上が不正確であることがわかった. 特に terminal type 以外の動脈瘤と, 最大径5mm未満の動脈瘤で, 治療時の working projectionが不正確になることが多かった. このような動脈瘤では, 切り出し法を用いた working projection の決定がより有用な可能性があると思われた.","subitem_description_type":"Abstract"}]},"item_7_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"67088","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Kitazawa, Keiko"}]}]},"item_7_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"新潟医学会"}]},"item_7_select_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_7_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00182415","subitem_source_identifier_type":"NCID"}]},"item_7_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00290440","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"北澤, 圭子"}],"nameIdentifiers":[{"nameIdentifier":"67087","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2019-08-06"}],"displaytype":"detail","filename":"126(5)_238-247.pdf","filesize":[{"value":"1.9 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"126(5)_238-247.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/9704/files/126(5)_238-247.pdf"},"version_id":"772965c4-e827-4c3f-a7a6-e271ebdd97a2"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"cerebral aneurysm","subitem_subject_scheme":"Other"},{"subitem_subject":"coil embolization","subitem_subject_scheme":"Other"},{"subitem_subject":"3-dimentional rotational angiography","subitem_subject_scheme":"Other"},{"subitem_subject":"working projection","subitem_subject_scheme":"Other"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"3-dimentional rotational angiography を用いた正確な working projection の検討","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"3-dimentional rotational angiography を用いた正確な working projection の検討"},{"subitem_title":"3-dimentional rotational angiography を用いた正確な working projection の検討","subitem_title_language":"en"}]},"item_type_id":"7","owner":"1","path":["456","943"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-01-09"},"publish_date":"2015-01-09","publish_status":"0","recid":"9704","relation_version_is_last":true,"title":["3-dimentional rotational angiography を用いた正確な working projection の検討"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-15T03:43:40.770508+00:00"}