Use of Computed Tomography (CT scan) for delineating anatomy and variation of frontal Sinus before Functional Endoscopic Sinus Surgery

Sajjad Ali Hashmi Syed, Sadaf Tanveer Khan, J. Syed
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Abstract

Abstract Introduction: For Functional Endoscopic Sinus Surgery (FESS), the surgeon needs an accurate depiction of the anatomy of paranasal sinuses and their variations. Computed tomography (CT Scan) fulfills this requirement by providing detailed anatomy, the anatomical variants, and the extent of the disease in and around the Para nasal sinuses. The aim of this study is to show the anatomy of the Frontal sinus as delineated by the computed tomography. Materials and Methods: STUDY DESIGN: Cross section Descriptive Study. Out of 337 patients above 12 years of age who were referred for computed tomography of paranasal sinuses in the Dept. of Radio- Diagnosis, Govt. Medical College and Hospital from December 2015 till October 2017, 200 adults(males and females) were randomly selected.Of the 200 subjects studied 37(18.5%) subjects had hypoplastic/ non or poorly pneumatised frontal sinuses of which 31 (15.5%) were bilateral and 6 (3%) were unilateral i.e. on right side. Observations and results: Intra frontal cell were seen in about 64 (32%) subjects of which 26 (13%) on right side, 24 (12%) were on left side and 14 (7%) were bilateral. Extension of pneumatisation into crista galli was seen in 16 (8%) subjects and into orbital roof was seen in 6 (3%) subjects. Conclusion: The findings in this study show that anatomical variations in the Para nasal sinuses and nasal cavity are common. Computed tomography is fundamental radiologic investigation for diagnosis of the Sino nasal lesions or pre and post-surgical assessment.
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功能性内窥镜鼻窦手术前计算机断层扫描(CT扫描)在额窦解剖和变异中的应用
摘要简介:对于功能性内窥镜鼻窦手术(FESS),外科医生需要准确描述鼻窦的解剖结构及其变异。计算机断层扫描(CT扫描)通过提供鼻旁窦及其周围的详细解剖结构、解剖变异和疾病程度来满足这一要求。本研究的目的是通过计算机断层扫描显示额窦的解剖结构。材料和方法:研究设计:横断面描述性研究。从2015年12月至2017年10月,在337名12岁以上的患者中,随机选择了200名成年人(男性和女性),这些患者在政府医学院和医院的放射诊断科接受了鼻窦计算机断层扫描。在研究的200名受试者中,37名(18.5%)受试者的额窦发育不全/未通气或通气不良,其中31名(15.5%)为双侧,6名(3%)为单侧,即右侧。观察和结果:约64名(32%)受试者出现额内细胞,其中26名(13%)在右侧,24名(12%)在左侧,14名(7%)在双侧。在16名(8%)受试者中发现气化扩展到鸡嵴,在6名(3%)受试人中发现气化延伸到眶顶。结论:本研究结果表明,副鼻窦和鼻腔的解剖变异是常见的。计算机断层扫描是诊断鼻腔病变或术前和术后评估的基础放射学研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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审稿时长
6 weeks
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