Study of the relationship between sphenoid sinus volume and protrusions in the sphenoid sinus
Study of the relationship between sphenoid sinus volume and protrusions in the sphenoid sinus作者机构：Department of Clinical and Imaging Anatomy School of Medicine Science and Laboratory Medicine Jiangsu University Zhenjiang China Department of Medical Imaging Affiliated Hospital of Jiangsu University Zhenjiang China Department of Ophthalmology Fourth Affiliated Hospital of Jiangsu University Zhenjiang China Department of Otolaryngology Affiliated Hospital of Jiangsu University Zhenjiang China
出 版 物：《Forensic Medicine and Anatomy Research》 (法医学与解剖学研究（英文）)
年 卷 期：2014年第2卷第1期
页 面：2-7页
学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题：Sphenoid Sinus Volume Protrusion of Internal Carotid Artery CT Imaging
摘 要：The relationship between the volume of sphenoid sinus (SS) and the prevalence of internal carotid artery (ICA) and optic nerve (ON) protrusions in the SS was studied by using high-resolution CT imaging. The ICA and ON protrusions in SS were observed in randomly selected normal head CT scanning images from 350 adult subjects. Ac-cording to the incidence of ICA protrusion, three groups were divided into no ICA protrusion (70.75%), unilateral protrusion (8.68%) and bi-lateral protrusions (20.57%). The ON protrusion accounted for 16% in 350 subjects and accom-panied absolutely with ICA protrusion, but ICA protrusion appeared without accompanying with ON protrusion. The SS volume depended upon the protrusions in it and showed statistical dif-ferences, without ICA protrusion, the smallest size (11.16 ± 1.60) cm3;the unilateral protrusion, medium size (14.20 ± 1.80) cm3 and the bilateral protrusion, the largest size (25.03 ± 2.21) cm3. By observing 3D reconstructed models of ON and SS, we found ON was adjacent to SS (46%) and to posterior ethmoid sinuses (44%). The current study indicates that SS volume is varied with numbers of the protrusions and that ON location varies with the pneumatization of SS. Our results provide an anatomical basis to the surgeries for SS and its surrounding structures.
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