Evaluation of Maxillary Sinus Dimensions in Gender Determination Using Helical CT Scanning

Abstract

Gender determination is an important step in identification in forensic medicine. CT measurements of maxillary sinuses may be useful to support gender identification. This study was undertaken to study the accuracy and reliability of maxillary sinus dimensions measurement in gender classification through the use of reconstructed helical CT images. Eighty-eight patients (43 men and 45 women) with age range from 20 to 49 years were selected in this study. The width, length, and height of the maxillary sinuses in addition to the total distance across both sinuses were measured. Data were subjected to discriminant analysis for gender using multiple regression analysis. Maxillary sinus height was the best discriminant parameter that could be used to study sexual dimorphism with an overall accuracy of 71.6%. Using multivariate analysis, 74.4% of male sinuses and 73.3% of female sinuses were sexed correctly. The overall percentage for sexing maxillary sinuses correctly was 73.9%. It can be concluded that reconstructed CT image can provide valuable measurements for maxillary sinuses and could be used for sexing when other methods of sexing are not conclusive.

Sexual dimorphism of maxillary sinus using cone beam computed tomography

“…In a study about sex determination from maxillary sinus dimensions in 88 patients between age group of 20-49 years by CT scan using the width, length and height of the sinuses in addition to the total distance across both sinuses showed that the maxillary sinus height was the best discriminant parameter that could be used to study sexual dimorphism with an overall accuracy of 71.6%. 18 This was in consensus with the present study which showed that the maxillary sinus height was the most reliable predictor of sex with the right sinus height able to classify with 90% accuracy and left sinus height able to classify with 83.3% accuracy. In another study of 33 hemi sectioned reconstructed CT images of maxillary sinus in a Korean population six categories of maxillary sinus were created and categorized according to their lateral aspects and shapes of the inferior walls.…”

Mandibular sexual dimorphism analysis in CBCT scans

“…Uthmann et al 17 Thus, GA presented a low rate of intra-reviewer agreement, which shows that GA has the least reproducibility of all the measurements. The inter-reviewer analysis revealed differences between the reviewers, however, these results do not undermine the effectiveness of measures of sex prediction, because both were selected by different analyses, providing a high rate of accuracy for estimating sex.…”

Cephalometric Analysis for Gender Determination Using Maxillary Sinus Index: A Novel Dimension in Personal Identification

“…Radiographic images provide adequate measurements for maxillary sinuses that cannot be approached by other means [6, 7]. Thus, the maxillary sinus height, width, and maxillary sinus index were considered in our study.…”

“…Teke et al (2007) established the accuracy of gender determination of 69.4% in females and 69.2% in males [10]. Uthman et al (2011) concluded that 74.4% of male sinuses and 73.3% of female sinuses were sexed correctly and the overall percentage for sexing maxillary sinuses correctly was 73.9% [6]. Vidya et al (2013) studied the height, length, width, and volume of maxillary sinuses of 30 dry skulls of south Indian origin and stated that the measurements and volume of maxillary sinus of males were slightly more [11].…”