Randhawa Lovepreet Singh, Semwal Ashish, Srivastava Rajendra Kumar, Hernot Sharad, Azad Rajiv Kumar, Kaintura Madhuri, Arora Manali, Atwal Gurpreet Kaur
Department of Radiodiagnosis, Shri Guru Ram Rai Institute of Medical and Health Sciences, Dehradun, Uttarakhand 248001 India.
Department of ENT & Head and Neck Surgery, Shri Guru Ram Rai Institute of Medical and Health Sciences, Dehradun, Uttarakhand 248001 India.
Indian J Otolaryngol Head Neck Surg. 2024 Feb;76(1):158-167. doi: 10.1007/s12070-023-04116-2. Epub 2023 Aug 21.
To study and analyse the variations in ethmoid roof anatomy and estimate the anatomical location and variations of AEA on CT scans. The study is conducted on 200 patients for detailed analysis of the olfactory fossa (OF) depth, supraorbital pneumatisation, and AEA location and distance from the skull base. In our study, Keros type II was predominant type seen followed by type I. Asymmetry was noted in 32/200 subjects (16%). The anterior ethmoidal artery (AEA) canal was seen in 341/400 sides (85.2%). We found Keros type II was the most common type in our study. We also found grade I anterior ethmoidal artery as the most common variant and the dangerous grade III anterior ethmoidal artery was least common type found in this study, and there was a significant association of Keros type II with increasing anterior ethmoidal artery grading.
研究和分析筛骨顶解剖结构的变异情况，并在CT扫描上评估筛前动脉（AEA）的解剖位置及变异。对200例患者进行研究，以详细分析嗅窝（OF）深度、眶上气房以及AEA的位置和距颅底的距离。在我们的研究中，Keros II型是最常见的类型，其次是I型。200例受试者中有32例（16%）存在不对称情况。在400侧中有341侧（85.2%）可见筛前动脉（AEA）管。我们发现Keros II型是我们研究中最常见的类型。我们还发现I级筛前动脉是最常见的变异类型，而危险的III级筛前动脉是本研究中最不常见的类型，并且Keros II型与筛前动脉分级增加存在显著关联。
