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Localization and Treatment of Unruptured Paraclinoid Aneurysms: A Proton Density MRI-based Study

Authors
 Seon Jin Yoon  ;  Na-Young Shin  ;  Jae Whan Lee  ;  Seung Kon Huh  ;  Keun Young Park 
Citation
 Journal of Cerebrovascular and Endovascular Neurosurgery, Vol.17(3) : 180-184, 2015 
Journal Title
 Journal of Cerebrovascular and Endovascular Neurosurgery 
ISSN
 2234-8565 
Issue Date
2015
Keywords
Aneurysm ; Internal carotid artery ; Magnetic resonance imaging
Abstract
OBJECTIVE: The purpose of this study was to evaluate the usefulness of proton density magnetic resonance (PD MR) imaging for localization of paraclinoid internal carotid artery aneurysms. MATERIALS AND METHODS: From April 2014 to April 2015, 76 unruptured paraclinoid aneurysms in 66 patients were evaluated using PD MR and angiography (CT/MR angiography or digital subtraction angiography). The locations (extradural, transdural, intradural) in relation to the distal dural ring (DDR) and projection (superior, inferior/posterior, medial, lateral) of the aneurysms were assessed and compared. RESULTS: The most common location of paraclinoid aneurysms was extradural (n = 48, 63.2%), followed by intradural (n = 18, 23.7%), and transdural (n = 10, 13.2%). In the medial projection group (n = 49, 64.5%), 31 were extradural (63.3%), 5 were transdural (10.2%), and 13 were intradural (26.5%). In the inferior/posterior projection group (n = 19, 25.0%), there were 14 extradural (73.7%), 4 transdural (21.0%), and 1 intradural (5.3%). In the superior (n = 4, 5.3%)/lateral (n = 4, 5.3%) projection groups, there were 0/3 extradural (0/75.0%), 1/0 transdural (25.0/0%), and 3/1 intradural (75.0/25.0%). CONCLUSION: PD MR showed sufficient contrast difference to distinguish paraclinoid aneurysms from surrounding dural structures.
Files in This Item:
T201506094.pdf Download
DOI
10.7461/jcen.2015.17.3.180
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Biochemistry and Molecular Biology (생화학-분자생물학교실) > 1. Journal Papers
Yonsei Authors
Park, Keun Young(박근영)
Yoon, Seon Jin(윤선진) ORCID logo https://orcid.org/0000-0002-3255-5081
Lee, Jae Whan(이재환)
Huh, Seung Kon(허승곤)
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/157241
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