CC BY-NC-ND 4.0 · Journal of Health and Allied Sciences NU 2013; 03(02): 044-045
DOI: 10.1055/s-0040-1703652
Original Article

VALIDATION METRICS OF THE MASTOID TRIANGLE

Bhagya B.
1   Lecturers, Department of Anatomy, Yenepoya Medical College, Yenepoya University, Deralakatte, Mangalore 575 018, Karnataka, India
,
Hema N.
1   Lecturers, Department of Anatomy, Yenepoya Medical College, Yenepoya University, Deralakatte, Mangalore 575 018, Karnataka, India
,
Ramakrishna A.
2   Professor, Department of Anatomy, Yenepoya Medical College, Yenepoya University, Deralakatte, Mangalore 575 018, Karnataka, India
› Institutsangaben

Abstract

The purpose of this study was to validate the technique developed by Paiva and Segre for sex identification using the mastoid process. Total mastoid area is calculated by adding the right and left triangular areas defined by three distinct craniometric points: the Asterion, Porion and the Mastoidale. Eight skulls (40 males and 40 females) were analysed and total area calculated using Heron's formula. The mean total area of the male skulls is higher compared to females (1461.06 mm2 vs 1222.79 mm2). Independent t-tests reveal that there are significant differences between males and females, with p-values less than 0.0001.



Publikationsverlauf

Artikel online veröffentlicht:
27. April 2020

© .

Thieme Medical and Scientific Publishers Private Ltd.
A-12, Second Floor, Sector -2, NOIDA -201301, India

 
  • References

  • 1 Bernard K A, Moore-Jansen P H. Quantifying male and female shape variation in the mastoid region of the temporal bone.
  • 2 De Paiva L A, Segre M. Sexing the human skull through the mastoid process. Rev Hosp Clin Fac Med São Paulo. 2003; 58(1):15-20.
  • 3 Tos M, Stangerup S E. The causes of asymmetry of the mastoid air cell system. Acta Oto- Laryngologica. 1985; 99:564-570.
  • 4 Kalmey J K, Rathbun T A. Sex determination by discriminant function analysis of the petrous portion of the temporal bone. Journal of Forensic Science. 1996; 41:865-867.
  • 5 Suazo G I C, Zavando M D A, Smith R L. Sex determination using mastoid process measurements in Brazilian skulls. International Journal of Morphology 2008; 26(4):941-944.
  • 6 Kemkes A, Gobel T. Metric assessment of the “mastoid triangle” for sex determination: a validation study. Journal of Forensic Science. 2006; 51:985-989.
  • 7 Day J D, Tschabitscher M. Anatomic position of the asterion. Neurosurgery. 1998; 42:198-199.