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Sex Determination Using Frontal Sinus Diameters on Direct Radiography
1Department of Radiology, Etimesgut Şehit Sait Ertürk State Hospital, Ankara, TUR.
Cureus
|November 29, 2023
Summary
Frontal sinus (FS) diameters are larger in males than females, enabling sex determination with 69.7% accuracy using direct radiography. This morphometric evaluation aids in human identification.
Area of Science:
- Forensic Anthropology
- Medical Imaging
- Human Identification
Background:
- Frontal sinus (FS) morphology is highly individualized, offering potential for sex and identity determination.
- Previous research suggests FS characteristics can be used in forensic identification.
Purpose of the Study:
- To assess frontal sinus (FS) diameters on posterioanterior (AP) skull radiography for sex determination.
- To evaluate the utility of FS morphometrics in identifying human features.
Main Methods:
- Analysis of AP skull radiography from 350 individuals (171 females, 179 males) aged 20-55.
- Classification of FS anatomy (symmetrical, asymmetrical, aplasia) and measurement of FS height and width.
- Statistical comparison of FS dimensions between sexes.
Main Results:
- Frontal sinus (FS) height and width were significantly greater in males than females (p<0.001).
- Sex determination accuracy was 71.2% for females and 68.2% for males.
- Overall sex determination accuracy using FS diameters was 69.7%.
Conclusions:
- Frontal sinus (FS) diameters are a reliable indicator for sex determination.
- Morphometric analysis of FS on direct radiography is valuable for gender and identity determination.
- FS morphology can be a significant tool in forensic identification.

