Hemodynamic analysis of endoleaks after endovascular abdominal aortic aneurysm repair by using 4-dimensional flow-sensitive magnetic resonance imaging 8

• 資料種別: 博士論文
• ISSN: 1346-9843
• タイトル: Hemodynamic analysis of endoleaks after endovascular abdominal aortic aneurysm repair by using 4-dimensional flow-sensitive magnetic resonance imaging
• 巻次・部編番号: 80 8
• 著者・編者: 美甘（阪田）, 麻裕
• 著者標目: 美甘（阪田）, 麻裕
• 出版年月日等: 2016-07-25
• 出版年（W3CDTF）: 2016-07-25
• 並列タイトル等: 4D Flow MRIを用いた腹部大動脈瘤に対するステントグラフト内挿術後のエンドリークに対する血行動態解析
• タイトル（掲載誌）: Circulation journal : official journal of the Japanese Circulation Society
• 授与機関名: 浜松医科大学
• 授与年月日: 2018-10-19
• 授与年月日（W3CDTF）: 2018-10-19
• 報告番号: 乙第555号
• 学位: 博士（医学）
• 博論授与番号: 乙第555号
• 本文の言語コード: eng
• 件名標目: 4D-flow; Endoleaks; Hemodynamics; Magnetic resonance imaging; Stent-graft
• 対象利用者: 一般
• 一般注記: doctoral; 医学系研究科; Background: An endoleak is a common complication of endovascular abdominal aortic aneurysm repair (EVAR), and it can be associated with aneurysmal growth. This pilot study used 4-dimensional flow-sensitive magnetic resonance imaging (4D-flow) to assess the hemodynamics of different types of endoleaks (I-IV).Methods and Results: Magnetic resonance angiography, 4D-flow, and computed tomography angiography (CTA) were performed in 31 patients after nitinol-based stent-graft deployment. With 4D-flow, the 3D streamlines of endoleaks appear as integrated traces along the instantaneous velocity vector field that are color-coded according to the local velocity magnitude of the leak. The 4D-flow analysis identified endoleaks in 18 patients (58.1%), whereas CTA identified endoleaks in 13 patients (41.9%). The 4D-flow analysis created a characteristic image of each type of endoleak. Among patients with endoleaks, 4D-flow identified concomitant multiple endoleaks in 7 (39%) patients, and it further differentiated type II endoleaks from type IIa endoleaks (to-and-fro biphasic flow pattern from a branch vessel) and from type IIb endoleaks (monophasic flow pattern with a connection between the inflow and outflow branches).Conclusions: The 4D-flow analysis was more sensitive than CTA for detecting an endoleak, and it could subclassify type II endoleaks. In addition, 4D-flow differentiated between concomitant endoleak types in a single patient. (Circ J 2016; 80: 1715-1725)
• DOI: info:doi/10.1253/circj.CJ-16-0297; https://doi.org/info:doi/10.1253/circj.CJ-16-0297
• 国立国会図書館永続的識別子: info:ndljp/pid/11337735; https://dl.ndl.go.jp/pid/11337735
• コレクション（共通）: 障害者向け資料
• コレクション（障害者向け資料：レベル1）: テキストデータ
• コレクション（個別）: 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文; https://dl.ndl.go.jp/collections/A00014
• 収集根拠: 博士論文（自動収集）
• 受理日（W3CDTF）: 2019-08-03T12:23:27+09:00
• 作成日（W3CDTF）: 2019-07-09
• 記録形式（IMT）: application/pdf
• オンライン閲覧公開範囲: 国立国会図書館内限定公開
• デジタル化資料送信: 図書館・個人送信対象外
• 遠隔複写可否（NDL）: 可
• 掲載誌（URI）: http://hdl.handle.net/10271/00003567; https://hama-med.repo.nii.ac.jp/records/3427
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

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2023-12-09 再収集