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논문 기본 정보

자료유형
학술저널
저자정보
Kim, Min-Young (Department of Neurosurgery School of Medicine Eulji University) Chung, Seung-Young (Department of Neurosurgery School of Medicine Eulji University) Kim, Seung-Min (Department of Neurosurgery School of Medicine Eulji University) Park, Moon-Sun (Department of Neurosurgery School of Medicine Eulji University) Jung, Sung-Sam (Department of Neurosurgery School of Medicine Eulji University)
저널정보
대한신경외과학회 대한신경외과학회지 대한신경외과학회지 제42권 제1호
발행연도
2007.1
수록면
35 - 41 (7page)

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Objective : Determining the location of paraclinoid aneurysms for microsurgery is important for selecting treatment options, especially when deciding on the release of the dural ring in direct clipping. We examined the reliability of using the optic strut as an anatomical landmark for evaluating the location of paraclinoid aneurysms. Methods : Cadaveric dissection was performed to establish the relationship of the optic strut to the dural ring. Results from these anatomic studies were compared with the three-demensional computed tomographic angiographic [3D-CTA] findings of nine patients with ten paraclinoid aneurysms between May 2004 and October 2005. These, 3D-CTA results were then compared with intraoperative findings. Results : The inferior boundary of the optic strut accurately localized the point at the proximal dural ring in cadaveric study. The optic strut and its relationship to the aneurysms was well observed on the multiplanar reformats of 3D-CTA. During microsurgery, nine of ten aneurysms were verified to arise from distal to the upper surface of the optic strut. Two aneurysms that had arisen between the inferior and superior boundary of the optic strut were observed to lie within the carotid cave. One aneurysm which had arisen at the inferior boundary of the optic strut and directed inferiorly was observed to lie within the cavernous sinus just after the release of the proximal ring. Conclusion : The optic strut, as identified with multiplanar reformats of 3D-CTA, provided a reliable anatomic landmark for the proximal rings and an important information about the location of aneurysms around the anterior clinoid process (ACP). Therefore, 3D-CTA and the optic strut could become an invaluable tool and a landmark in the assessment of the location of paraclinoid aneurysms for microsurgery.

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