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Congress: ECR25
Poster Number: C-26737
Type: Poster: EPOS Radiologist (scientific)
DOI: 10.26044/ecr2025/C-26737
Authorblock: H. Sasani1, M. Ozkan1, H. H. Celik2; 1Tekirdag/TR, 2Ankara/TR
Disclosures:
Hadi Sasani: Nothing to disclose
Mazhar Ozkan: Nothing to disclose
Hakan Hamdi Celik: Nothing to disclose
Keywords: Anatomy, Bones, Head and neck, CT, Computer Applications-3D, Computer Applications-General, Education and training, Forensics
Methods and materials

This retrospective, cross-sectional descriptive study analyzed cranial CT scans of 1800 patients (909 males, 891 females) aged 20-79, conducted between January 2023 and March 2024. The study aimed to assess the external occipital protuberance (EOP) using morphometric measurements, such as base diameter, height, angle, diploe distance, and distance from the foramen magnum (FMAG) (Fig 2).

Patients with optimal CT images and detectable EOP were included, while those with bone abnormalities or poor-quality images were excluded. Non-enhanced CT scans were performed, and imaging assessments were done by an experienced radiologist.

Statistical analysis was performed using SPSS program (SPSS Inc. Released 2009. PASW Statistics for Windows, Version 18.0. Chicago: SPSS Inc), including non-parametric tests for group comparisons and correlation analysis. Gender and age group estimations were carried out using artificial neural networks, with training and testing data for model evaluation. Ethical approval was granted (No: 2024.109.05.17, Date: 28.05.2024), and all patients provided informed consent.
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