Superior Canal Dehiscence: A Comparative Postmortem Multislice Computed Tomography Study:

OTO Open

PhilippMittmann¹ 

关键词: semicircular dehiscence;    postmortem CT;    vertigo;    high-resolution CT;   

DOI  :  10.1177/2473974X18793576

学科分类：外科医学

来源: Sage Journals

【 摘 要 】

ObjectiveSuperior canal dehiscence is defined by missing bony coverage of the superior canal against the middle cranial fossa. The gold standard in diagnosis is high-resolution computed tomography (CT). A false-positive CT scan, identifying a dehiscence when one is not present, could lead to unnecessary surgical therapy. This study aims to compare postmortem CT scans with autopsy findings with regard to superior canal dehiscence.Study DesignPostmortem study.SettingTertiary referral center.Subjects and MethodsTwenty-two nontraumatic death cases within a 3-month period (January to March 2017) were included with 44 temporal bones. Each body underwent postmortem head CT prior to medicolegal autopsy. The middle fossa floor was exposed, and if present, the superior semicircular canal dehiscence was identified and measured. In each case, 3 comparable photographs were taken during the autopsy (left temporal bone, right temporal bone, overview).ResultsAutopsy findings revealed bony dehiscences in 11% of the tempor...

【 授权许可】

CC BY-NC