Zulkiflee, Nur Damia Iwani and Alias, Aspalilah and Chainchel Singh, Mansharan Kaur and Mohd Hadi Pritam, Helmi and Chung, Eric and Sakaran, Rani and Zaidun, Nurul Hannim and Choy, Ker Woon (2022) Sexual Dimorphism of Frontal Sinus: A 2-Dimensional Geometric Morphometric Analysis on Lateral Skull Radiographs. Forensic Imaging, 29. p. 200506. ISSN 2666-2264, DOI https://doi.org/10.1016/j.fri.2022.200506.
Full text not available from this repository.Abstract
Bakground: Sex identification is vital in establishing biological identity of unknown remains. In cases of fragmented skeletons, the resiliency of the frontal sinus suggests its potential in establishing biological identity. The traditionally used linear measurement has low reliability and is size-oriented, whereas geometric morphometrics is efficient as being reliable in characterising the shape. However, the frontal sinus approach for sex identification among Malaysians is yet to be explored. Objective: This study aims to evaluate sexual dimorphism of frontal sinus among Malaysians using the two-dimensional (2D) geometric morphometrics method. Methods: Lateral skull radiographs of 453 adult Malaysian, comprising 228 males and 225 females, were retrieved retrospectively. Eight 2D landmarks were applied to the lateral skull radiographs using TPSDig2 software. 2D geometric morphometric analysis was performed by MorphoJ software. Results: The Principal Component Analysis (PCA) showed that the first three Principal Component (PCs) exhibit 83.0 of the total variance of the frontal sinus shape. Procrustes analysis of variance (ANOVA) revealed significant differences in centroid size and shape (p-value < 0.05) of frontal sinus between sexes. Discriminant Function Analysis (DFA) after cross-validation demonstrated a classification accuracy of 78.5 in males and 82.7 in females, with an average of 80.6. Conclusion: High classification accuracy suggests that frontal sinus is a valuable tool for sex identification using 2D geometric morphometrics. The significant sexual dimorphism of the frontal sinus shape indicates its capability to aid in forensic investigation. To the best of our knowledge, this is the first study which showed such findings among Malaysian population. © 2022
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Additional Information: | Cited by: 2 |
| Uncontrolled Keywords: | estrogen; testosterone; adult; Article; cross validation; cross-sectional study; discriminant analysis; female; frontal sinus; human; major clinical study; male; maxillofacial injury; morphometry; physical activity; principal component analysis; retrospective study; sex difference; skull radiography |
| Subjects: | R Medicine > R Medicine (General) |
| Divisions: | Faculty of Medicine > Biomedical Imaging Department |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 18 Nov 2024 09:02 |
| Last Modified: | 18 Nov 2024 09:02 |
| URI: | http://eprints.um.edu.my/id/eprint/43744 |
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