Journal of Clinical Otolaryngology Head and Neck Surgery
The Busan, Ulsan, Gyeoungnam Branch of Korean Society of Otolaryngology-Head and Neck Surgery
원저

측두골 전산화단층촬영에서 상반고리관 결손의 빈도와 상부 골벽의 두께 측정

최성원1, 박성환1, 공수근1, 오세준1, 이일우2, 고의경1,*
Sung-Won Choi1, Sung-Hwan Park1, Soo-Keun Kong1, Se-Joon Oh1, Il-Woo Lee2, Eui-Kyung Goh1,*
1부산대학교 의학전문대학원 부산대학교병원 이비인후과학교실
2부산대학교 의학전문대학원 양산부산대학교병원 이비인후과학교실
1Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University School of Medicine,Pusan National University Hospital, Busan, Korea
2Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University School of Medicine,Pusan National University Yangsan Hospital, Yangsan, Korea
*교신저자: 고의경,602-739 부산광역시 서구 아미동 1가 10 부산대학교 의학전문대학원 부산대학교병원 이비인후과학교실 전화: (051) 240-7332· 전송: (051) 246-8668 · E-mail: gohek@pusan.ac.kr

© Copyright 2012 The Busan, Ulsan, Gyeoungnam Branch of Korean Society of Otolaryngology-Head and Neck Surgery. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Received: Sep 14, 2012; Revised: Sep 28, 2012; Accepted: Oct 23, 2012

Published Online: May 31, 2020

ABSTRACT

Background: Superior semicircular canal dehiscence syndrome (SCDS) is diagnosed by clinical symptoms and signs. Computed tomography (CT) has been used to confirm the diagnosis. A consecutive series of temporal bone CT scans was reviewed to define the prevalence of a dehiscent-appearing superior semicircular canal in temporal bone and measured to know the thickness of bone overlying the superior semicircular canal. These datas support to make a diagnosis of SCDS. Methods: Retrospective review of CT scans of the temporal bone performed at our institution between January 2006 and December 2008. Prevalence figures for dehiscent-appearing superior semicircular canal were determined by consensus. An additional 50 control subjects who underwent temporal bone multi-detector row CT for other reasons, were prospectively selected to measure the thickness of bone overlying the superior semicircular canal. Results: A dehiscent-appearing superior semicircular canal was seen in 30 ears (1.5%) of studies, at the middle fossa floor (n=22) and where the superior petrosal sinus was in contact with the canal (n=8). The thickness of bone overlying the superior canal in controls measured 1.02 ±0.42 mm (mean ± SD). And the thickness of the bone overlying the superior canal on one side correlated with that on the other side in controls (r=0.62, p< 0.0001). Conclusions: Determination of Superior canal dehiscence (SCD) should be based on the coronal CT scans that correlated with clinical symptoms. (J Clinical Otolaryngol 2012;23:206–211)

Keywords: 측두골; 전산화단층촬영; 상반고리관 결손 증후군
Keywords: Temporal bone; Computed tomography; Superior canal dehiscence syndrome