AI Article Synopsis

  • The study investigates sex differences in the size of the Mastoid Triangle (MT) among Bulgarian adults using CT scans.
  • The research involved creating 3D models from CT data to analyze the dimensions of the MT, with significant differences found between males and females in sides, area, and angles.
  • Results indicated that the MT can accurately estimate sex with up to 89% accuracy, validating its effectiveness in forensic and anthropological applications.

Article Abstract

Mastoid Triangle (MT) is a triangle constructed between the landmarks and . The aim of the study is to evaluate the sex differences in the MT size in Bulgarian adults and to develop discriminant functions for sex estimation based on the MT sides and area. The study was carried out on 148 head CT scans. A sample of 53 males and 53 females was used for development of discriminant functions, and a test sample of 21 males and 21 females was applied for their validation. Using the software InVesalius, 3D models of the skulls were segmented and exported in STL format. The 3D coordinates of the landmarks and were collected using the software MeshLab. The MT sides, area and angles were calculated. The sex differences were assessed by the independent t-test. Bilateral differences were evaluated using the paired t-test. Univariate and multivariate discriminant function analyses were applied. The results showed that the MT sides and area differed significantly between both sexes. Sex differences were also established for the angle at . Bilateral differences were found in males for the distance , which was significantly greater on the right side. The MT dimensions showed sufficient discriminating power for sex estimation among Bulgarians (up to 89%), and the total MT area proved to be the best single sex discriminating trait. The test sample corroborated the usefulness of the MT in sex estimation demonstrating similar or higher overall accuracy rates.

Download full-text PDF

Source
http://dx.doi.org/10.1127/homo/2019/1010DOI Listing

Publication Analysis

Top Keywords

sex estimation
16
sex differences
12
sides area
12
sex
8
mastoid triangle
8
discriminant functions
8
sample males
8
males females
8
test sample
8
bilateral differences
8

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!