ASSESSMENT OF FORAMEN MAGNUM AND CLIVUS FOR ESTIMATION OF AGE AND GENDER USING CONE-BEAM CT

Objectives: The aim of this study is to perform morphometric analysis of the foramen magnum (FM) and clivus using cone-beam computed tomography (CBCT) and to evaluate their applicability in age and gender estimation. Materials and Methods: CBCT images of 412 individuals (248 females and 164 males) were included in the study. The sagittal dimension (SD) and transverse dimension (TD) and area of the FM were measured. The width and length of clivus were calculated. The data were statistically analyzed with ANOVA, Kruskal-Wallis and t-tests to assess the level of significance for sex and age. Result: The mean values of SD, TD, area of FM and width and length of clivus were higher in males than in females. Statistically significant differences were found between sexes for all variables (p< 0.05). There was no statistically difference between age and FM dimensions (p > 0.05). There was a significant relationship and positive correlation between length of clivus and age groups (p=0.009, r=0.351). Concusion: CBCT provides valuable information about the dimensions of the FM and clivus, and can be used reliably for anthropometric analysis and forensic medicine in the field of sexual dimorphism. The length of clivus can also help in determining age groups. Keywords:Age estimation, CBCT, clivus, foramen magnum, sex estimation . Yaş ve Cinsiyet Tayininde Foramen Magnum ve Klivusun Konik Işınlı BT Kullanımı ile DeğerlendirilmesiÖZ Amaç: Bu çalışmanın amacı foramen magnum (FM) ve klivusun morfometrik özelliklerini konik ışınlı bilgisayarlı tomografi (KIBT) ile belirleyip ve yaş ve cinsiyet belirlemede kullanılabilirliğini değerlendirmektir. Materyal ve Metod: 412 bireye (248 bayan ve 164 erkek) ait KIBT görüntüsü çalışmaya dahil edildi. FM’ un sagittal boyutu (SB), transversal boyutu (TB) ve alanı ölçüldü. klivusun genişlik ve uzunluğu ölçüldü. Veriler, cinsiyet ve yaş için önem düzeyini değerlendirmek amacıyla ANOVA, Kruskal-Wallis ve t-testleri ile istatistiksel olarak analiz edildi. Bulgular: SB, TB, FM alanı ile klivus genişliği ve uzunluğuna ait ortalama değerler erkeklerde kadınlara nazaran yüksek bulundu. Tüm değişkenler için cinsiyetler arasında istatistiksel olarak anlamlı fark görüldü. klivusun uzunluğu ile yaş grupları arasında anlamlı bir ilişki ve pozitif korelasyon görüldü (p=0.009, r=0.351). Sonuç: KIBT, FM ve klivus boyutları hakkında değerli bilgiler sağlar ve cinsiyet ayrımında antropometrik ve adli tıp alanında güvenilir bir şekilde kullanılabilir. Ayrıca klivusun uzunluğu da yaş gruplarının belirlenmesinde yardımcı olabilir. Anahtar Sözcükler: Yaş tayini, KIBT, klivus, foramen magnum, cinsiyet ayrımı

Anahtar Kelimeler:

Age estimation, CBCT, clivus, foramen magnum

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