{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390001204409819520.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.7887/jcns.21.481"}},{"identifier":{"@type":"URI","@value":"https://www.jstage.jst.go.jp/article/jcns/21/6/21_KJ00008076315/_pdf"}},{"identifier":{"@type":"NAID","@value":"110009457759"}},{"identifier":{"@type":"URI","@value":"https://search.jamas.or.jp/link/ui/2012281702"}}],"dc:title":[{"@language":"ja","@value":"傍突起部内頚動脈瘤の発育方向とコイル塞栓術の治療結果"},{"@language":"en","@value":"Treatment Results of Endovascular Surgery based on Projection of Paraclinoid Internal Carotid Artery Aneurysms"}],"dc:language":"ja","description":[{"type":"abstract","notation":[{"@language":"en","@value":"Object: In order to predict the technical difficulties of coil embolization for paraclinoid aneurysms (PC-an), we retrospectively analized our clinical experience. Method: We analyzed 34 patients with 35 PC-an treated with endovascular techniques between 2001 and 2010. These aneurysms were classified into 4 groups on the basis of their projections visualized on angiograms as follows: ventral, 17 ; medial, 7 ; dorsal, 8 and lateral, 3. The size of the aneurysms and the angle of carotid siphon were measured on angiograms for each group. The levels of those aneurysm necks were classified as supraclinoid, clinoid and infraclinoid according to their relation to the anterior clinoid process. Angiographic outcome, volume embolization ratio (VER), number of microcatheters and microguidewires used and duration of endovascular procedure were evaluated for each group. Clinical outcomes were assessed using the Glasgow Outcome Scale (GOS). Result: The mean size of the aneurysms in the ventral, medial, dorsal and lateral groups was 4.1, 5.6, 6.7 and 8.4 mm, respectively. The mean angle of carotid siphon was more acute in the dorsal and lateral groups. The neck level was supraclinoid in 10, clinoid in 14 and infraclinoid in 11. The percentage of dorsal and lateral groups was larger in the supraclinoid level. Endovascular treatment was successfully performed in 91.4% cases with treatment complications including 3 ischemic events. The number of patients with clinical outcomes classified according to the GOS was as follows: good recovery, 31 ; moderately disabled, 2 ; severely disabled, 1 ; vegetative state, 0 and dead, 1. Complete obliteration was achieved in 70.6%, 57.1%, 32.5% and 0% patients in the ventral, medial, dorsal and lateral groups, respectively, and the corresponding VER was 37.6%, 32.3%, 24.8% and 16.4%. The number of microcatheters and microguidewires used was higher in the dorsal and lateral groups than that used in the other 2 groups. The duration of the procedures was also longer in the dorsal and lateral groups. Conclusion: Endovascular treatment is a safe and effective therapeutic alternative for PC-an. However, in dorsal and lateral PC-an, this treatment entails additional difficulties of handling microcatheters and microguidewires because of their anatomical specificity. Therefore, endovascular treatment for these aneurysms is occasionally associated with lower rates of complete obliteration and lower VER than those of ventral and medial PC-an."},{"@language":"ja","@value":"傍突起部内頚動脈瘤のコイル塞栓術の治療成績向上を目的として自験例を分析した.動脈瘤を発育方向別に4群に分け,動脈瘤や内頚動脈サイホンの解剖学的な特徴,コイル塞栓術による治療成績,治療難易度を比較検討した.対象は34例の35病変で,腹側群17例,内側群7例,背側群8例,外側群3例の4群である.腹側および内側群は小さく,ワイドネックが多かった.背側および外側群の動脈瘤頚部はサイホン部以遠に多く,サイホンの屈曲角度はより鋭的であった.治療は32病変で完遂できた.治療効果と塞栓率は背側および外側群で劣る傾向があった.背側および外側群のサイホン屈曲角度はより急峻で,サイホンのより遠位に動脈瘤が多いことが,コイル塞栓術を困難にしていると考えられた."}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410001204409819522","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"伊藤 英道"},{"@language":"en","@value":"Ito Hidemichi"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Neurosurgery, St. Marianna University School of Medicine"},{"@language":"ja","@value":"聖マリアンナ医科大学脳神経外科"}]},{"@id":"https://cir.nii.ac.jp/crid/1410001204409819520","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"森嶋 啓之"},{"@language":"en","@value":"Morishima Hiroyuki"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Neurosurgery, St. Marianna University School of Medicine, Yokohama City Seibu Hospital"},{"@language":"ja","@value":"聖マリアンナ医科大学横浜市西部病院脳神経外科"}]},{"@id":"https://cir.nii.ac.jp/crid/1410001204409819524","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"小野寺 英孝"},{"@language":"en","@value":"Onodera Hidetaka"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Neurosurgery, St. Marianna University School of Medicine"},{"@language":"ja","@value":"聖マリアンナ医科大学脳神経外科"}]},{"@id":"https://cir.nii.ac.jp/crid/1410001204409155459","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000006879193"}],"foaf:name":[{"@language":"ja","@value":"和久井 大輔"},{"@language":"en","@value":"Wakui Daisuke"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Neurosurgery, St. Marianna University School of Medicine, Yokohama City Seibu Hospital"},{"@language":"ja","@value":"聖マリアンナ医科大学横浜市西部病院脳神経外科"}]},{"@id":"https://cir.nii.ac.jp/crid/1410001204409819525","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000016854945"}],"foaf:name":[{"@language":"ja","@value":"田中 雄一郎"},{"@language":"en","@value":"Tanaka Yuichiro"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Neurosurgery, St. Marianna University School of Medicine"},{"@language":"ja","@value":"聖マリアンナ医科大学脳神経外科"}]},{"@id":"https://cir.nii.ac.jp/crid/1410001204409819521","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"橋本 卓雄"},{"@language":"en","@value":"Hashimoto Takuo"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Neurosurgery, St. Marianna University School of Medicine"},{"@language":"ja","@value":"聖マリアンナ医科大学脳神経外科"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"0917950X"},{"@type":"LISSN","@value":"0917950X"},{"@type":"EISSN","@value":"21873100"},{"@type":"NCID","@value":"AN10380506"}],"prism:publicationName":[{"@language":"en","@value":"Japanese Journal of Neurosurgery"},{"@value":"脳神経外科ジャーナル"},{"@language":"en","@value":"Jpn J Neurosurg"},{"@value":"脳外誌"}],"dc:publisher":[{"@language":"en","@value":"The Japanese Congress of Neurological Surgeons"},{"@language":"ja","@value":"一般社団法人日本脳神経外科コングレス"}],"prism:publicationDate":"2012","prism:volume":"21","prism:number":"6","prism:startingPage":"481","prism:endingPage":"488"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","url":[{"@id":"https://www.jstage.jst.go.jp/article/jcns/21/6/21_KJ00008076315/_pdf"},{"@id":"https://search.jamas.or.jp/link/ui/2012281702"}],"availableAt":"2012","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=coil%20embolization","dc:title":"coil embolization"},{"@id":"https://cir.nii.ac.jp/all?q=endovascular%20treatment","dc:title":"endovascular treatment"},{"@id":"https://cir.nii.ac.jp/all?q=internal%20carotid%20artery","dc:title":"internal carotid artery"},{"@id":"https://cir.nii.ac.jp/all?q=paraclinoid%20aneurysm","dc:title":"paraclinoid aneurysm"},{"@id":"https://cir.nii.ac.jp/all?q=volume%20embolization%20ratio","dc:title":"volume embolization ratio"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360574094200378368","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Aneurysms of the ophthalmic segment"}]},{"@id":"https://cir.nii.ac.jp/crid/1360574094480061312","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Surgery for paraclinoidal carotid artery aneurysms"}]},{"@id":"https://cir.nii.ac.jp/crid/1360574094817408000","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"NEUROFORM STENT-ASSISTED COIL EMBOLIZATION OF WIDE-NECK INTRACRANIAL ANEURYSMS"}]},{"@id":"https://cir.nii.ac.jp/crid/1361137043808591872","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Subclinoid aneurysms"}]},{"@id":"https://cir.nii.ac.jp/crid/1361137045070680704","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Carotid-Ophthalmic 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