전정신경초종 환자의 자기공명영상을 이용한 내이도 수직 재구성 영상의 임상적 유용성

• 영문명: Clinical Feasibility of Perpendicula Image of Internal Auditory Canal in Vestibular Schwannoma
• 발행기관: 대한두개저학회
• 저자명: 전범조(Beomcho Jun) 장기홍(Kihong Chang) 김동훈(Dong-Hoon Kim)
• 간행물 정보: 『대한두개저학회지』제7권 제1호, 5~9쪽, 전체 5쪽
• 주제분류: 의약학 > 일반외과학
• 파일형태: PDF
• 발행일자: 2012.06.30

영문 초록

Introduction : In vestibular schwannoma, conventional temporal bone MRI is a useful tool of measuring the dimension and location of tumor. However, it is hard to get surgical information about relationship between the tumor mass and anatomical structures such as VII, VIII nerves and vessel. So we tried to confirm the clinical feasibility of perpendicular images to IAC in temporal bone MRI in a case of vestibular schwannoma. Material and methods : Temporal bone MR Imaging was obtained with T2 weighted three dimensional turbospin echo after contrast injection. The thickness of axial slices was 0.6mm and FOV(field of view) was 150x200. Reformatted images were achieved using threedimensional reconstruction software(Vworks 4.0tm) with 0.2mm thickness perpendicular to the axis of IAC from brainstem to the end of cochlear. Results : The reformatted image of IAC gave us information not only about the relationship between the tumor and vascular structure but also about the degree of tumor extent to the facial and cochlear nerve which expected to be preserved during the surgery. Additionally, in case of vascular loop, perpendicular image of IAC told us surgical information helpful to the prevention of unexpected severe bleeding during microsurgery. Conclusions : Reformatted perpendicular image to IAC gives us detail information about nerves and vascular structure in IAC, especially in case of moderate to small sized masses of vestibular schwannoma. However, in case of huge mass of vestibular schwannoma filling entire IAC, it is hard to discern the tumor from the nerves in the canal.

목차

Introduction

Material and Methods

Results

Discussion