{"@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/1390282680035505280.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.2176/nmc.oa.2015-0201"}},{"identifier":{"@type":"PMID","@value":"26458847"}},{"identifier":{"@type":"URI","@value":"https://www.jstage.jst.go.jp/article/nmc/56/1/56_oa.2015-0201/_pdf"}},{"identifier":{"@type":"NAID","@value":"130005119819"}},{"identifier":{"@type":"URI","@value":"https://search.jamas.or.jp/link/ui/2016275717"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@language":"en","@value":"Impact of Aneurysmal Neck Position in Endovascular Therapy for Anterior Communicating Artery Aneurysms"}],"dc:language":"en","description":[{"type":"abstract","notation":[{"@language":"en","@value":"Anterior communicating artery (ACoA) aneurysms have a complex architecture and many variations, making endovascular therapy more difficult in some cases. The aim of this study was to investigate whether the neck position of an aneurysm was identifiable for determining the immediate angiographic success and procedural complications in the coiling of the ACoA aneurysms. We conducted a retrospective case review of 40 patients with ACoA aneurysms treated by endovascular therapy from 2008 to 2015. The mean age was 66.8 years. Thirty-five aneurysms were ruptured; five were unruptured. For the analysis, the patients were divided into two groups according to the neck position of aneurysms: the true ACoA group, 9 patients with the neck located on the ACoA itself; and the other ACoA group, 31 patients with the neck at the junction of the A1 and A2 portions of an anterior cerebral artery. Morphological characteristics (dome size, dome direction, rate of wide neck, and angulation of aneurysms in relation to the parent artery) were analyzed along with immediate angiographic results, volume embolization ratio (VER), and procedural complications. Small aneurysms with superior dome projection and acute angulation of the aneurysm direction occurred more often in the true ACoA group. The rates of complete obliteration, VER, and procedural complications were 33.3%, 32.3%, and 22.2% in the true ACoA group and 54.8%, 36.3%, and 6.5% in the other ACoA group, respectively. True ACoA aneurysms could present an anatomical difficulty in endovascular coiling. Aneurysmal neck position should be accurately assessed to achieve successful embolization of the ACoA aneurysms."}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410282680035505154","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000313615401"}],"foaf:name":[{"@language":"en","@value":"ITO Hidemichi"}],"jpcoar:affiliationName":[{"@language":"en","@value":"St. Marianna University School of Medicine"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282680035505283","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000313615402"}],"foaf:name":[{"@language":"en","@value":"ONODERA Hidetaka"}],"jpcoar:affiliationName":[{"@language":"en","@value":"St. Marianna University School of Medicine"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282680035505152","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000313615403"}],"foaf:name":[{"@language":"en","@value":"WAKUI Daisuke"}],"jpcoar:affiliationName":[{"@language":"en","@value":"St. Marianna University School of Medicine"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282680035505153","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000313615404"}],"foaf:name":[{"@language":"en","@value":"UCHIDA Masashi"}],"jpcoar:affiliationName":[{"@language":"en","@value":"St. Marianna University School of Medicine"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282680035505280","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000313615405"}],"foaf:name":[{"@language":"en","@value":"SASE Taigen"}],"jpcoar:affiliationName":[{"@language":"en","@value":"St. Marianna University School of Medicine"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282680035505155","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000313615406"}],"foaf:name":[{"@language":"en","@value":"MORISHIMA Hiroyuki"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Kawasaki City Tama Municipal Hospital"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282680035505281","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000313615407"}],"foaf:name":[{"@language":"en","@value":"OSHIO Kotaro"}],"jpcoar:affiliationName":[{"@language":"en","@value":"St. Marianna University School of Medicine"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282680035505282","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000313615408"}],"foaf:name":[{"@language":"en","@value":"TANAKA Yuichiro"}],"jpcoar:affiliationName":[{"@language":"en","@value":"St. Marianna University School of Medicine"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"04708105"},{"@type":"LISSN","@value":"04708105"},{"@type":"EISSN","@value":"13498029"}],"prism:publicationName":[{"@language":"en","@value":"Neurologia medico-chirurgica"},{"@language":"en","@value":"Neurol. Med. Chir.(Tokyo)"}],"dc:publisher":[{"@language":"en","@value":"The Japan Neurosurgical Society"},{"@language":"ja","@value":"一般社団法人 日本脳神経外科学会"}],"prism:publicationDate":"2016","prism:volume":"56","prism:number":"1","prism:startingPage":"21","prism:endingPage":"26"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","url":[{"@id":"https://www.jstage.jst.go.jp/article/nmc/56/1/56_oa.2015-0201/_pdf"},{"@id":"https://search.jamas.or.jp/link/ui/2016275717"}],"availableAt":"2016","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=anterior%20communicating%20artery%20aneurysm","dc:title":"anterior communicating artery aneurysm"},{"@id":"https://cir.nii.ac.jp/all?q=endovascular%20therapy","dc:title":"endovascular therapy"},{"@id":"https://cir.nii.ac.jp/all?q=morphology","dc:title":"morphology"},{"@id":"https://cir.nii.ac.jp/all?q=volume%20embolization%20ratio","dc:title":"volume embolization ratio"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360011146515644672","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Endovascular Therapy of 500 Small Asymptomatic Unruptured Intracranial Aneurysms"}]},{"@id":"https://cir.nii.ac.jp/crid/1360292619678023168","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"“Y” and “X” Stent-Assisted Coiling of Complex and Wide-Neck Intracranial Bifurcation Aneurysms"}]},{"@id":"https://cir.nii.ac.jp/crid/1360292620393039616","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Impact of individual intracranial arterial aneurysm morphology on initial obliteration and recurrence rates of endovascular treatments: a multivariate analysis"}]},{"@id":"https://cir.nii.ac.jp/crid/1360574093894465920","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Endovascular treatment of 306 anterior communicating artery aneurysms: overall, perioperative results"}]},{"@id":"https://cir.nii.ac.jp/crid/1360855570987452416","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Feasibility and Limitations of Endovascular Coil Embolization of Anterior Communicating Artery Aneurysms: Morphological Considerations"}]},{"@id":"https://cir.nii.ac.jp/crid/1361137046154410112","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Endovascular Therapy of Very Small Aneurysms of the Anterior Communicating Artery: Five-fold Increased Incidence of Rupture"}]},{"@id":"https://cir.nii.ac.jp/crid/1362262944438069760","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Microsurgical anatomy of the anterior cerebral-anterior communicating-recurrent artery complex"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544419040541952","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Rupture of intracranial aneurysms during treatment with Guglielmi detachable coils: incidence, outcome, and risk factors"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825894483043200","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Endovascular treatment of anterior communicating artery aneurysms using Guglielmi detachable coils"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825895422780928","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Treatment of anterior communicating artery aneurysms: complementary aspects of microsurgical and endovascular procedures"}]},{"@id":"https://cir.nii.ac.jp/crid/1363107370901580800","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"International Subarachnoid Aneurysm Trial (ISAT) of neurosurgical clipping versus endovascular coiling in 2143 patients with ruptured intracranial aneurysms: A randomized 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