Sex discrimination of mastoid process by anthropometric measurements using multidetector computed tomography in Egyptian adult population

Allam, Fatma Alzhraa Fouad Abdel Baki; Allam, Mohammad

doi:10.1016/j.ejfs.2016.05.001

Cited by 18 publications

(22 citation statements)

References 11 publications

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“…In this research study, dimensions of the mastoid process and AMT were found to be significantly greater in males than females. The literature also showed that the mastoid process was steadily greater in male than in female in many racial groups [18,22,23,26,27]. Besides, other studies had also analyzed the classification accuracy of sexual dimorphism of the mastoid process [19,22,26].…”

Section: Discussionmentioning

confidence: 99%

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Osteometric Estimation of Sex From Mastoid Triangle in Malaysian Population

Ibrahim

Alias

Shafie

et al. 2018

Asian J Pharm Clin Res

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Objective: Determination of sex is one of the most important parameters for conducting biological profile of unknown skeletal remains in anatomical anthropology and forensic medicine. Mastoid bone is useful for the identification of sex, as it is the most protected bone and is resistant to damage, due to its anatomical position at the base of the skull. The aim of this study was to develop new equations for the estimation of sex from mastoid triangle in the Malaysian population.Methods: About 10 parameters were studied on 388 computed tomography scans of crania in 231 males and 157 females. The parameters comprised three sides of mastoid triangle, its perimeter and area on both sides. T-test was used to compare between the right and left sides and between males and females. Stepwise discriminant function was used to reveal the best discriminatory parameter and its classification accuracy.Results: Comparison of means by T-test revealed no difference between the right and left sides in both sexes. T-test showed a significant difference between males and females for all parameters. Perimeter of mastoid triangle was found to be the best parameter by stepwise discriminant analysis. The equation based on perimeter of mastoid triangle was developed with 84.4% classification accuracy.Conclusion: The developed equation could be used to assess sexual dimorphism of fragmented Malaysian crania with intact mastoid region. The achieved cross-validated classification was relatively high compared to that in other previous studies.

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Section: Discussionmentioning

confidence: 99%

“…Gupta et al (2012) developed a new standard for the determination of sex in fragmentary human skeletal remains using mastoid process of 70 South Indians skulls [22]. Determination of sex from mastoid process was achieved in 80 Egyptian skulls by anthropometric measurements using multidetector computed tomography [23].…”

Section: Ibrahim Et Almentioning

confidence: 99%

Osteometric Estimation of Sex From Mastoid Triangle in Malaysian Population

Ibrahim

Alias

Shafie

et al. 2018

Asian J Pharm Clin Res

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“…If consider skeletal dimensions than males and females differ only by approximately 8%. [4] The validity and accuracy of traditional approaches for identification highly depends on a preservation method and skeletal completeness, especially with different morphologic element of the body such examples are skull and pelvis. [4] In most Medico-Legal procedures, identification from the morphology of the skull is one of essential.…”

Section: Evaluating Foramen Magnum Surface Area In Males and Females ...mentioning

confidence: 99%

“…[4] The validity and accuracy of traditional approaches for identification highly depends on a preservation method and skeletal completeness, especially with different morphologic element of the body such examples are skull and pelvis. [4] In most Medico-Legal procedures, identification from the morphology of the skull is one of essential. Especially in Forensic studies were the remaining of skeletons are sometimes incomplete and this will make the sex identification very difficult.…”

Section: Evaluating Foramen Magnum Surface Area In Males and Females ...mentioning

confidence: 99%

Evaluating Foramen Magnum Surface Area in Males and Females for Morphological Differences Using 3D Computed Tomography Among Maharashtrian Population

Ravi Christian,

Gaurav Mishra

2023

Indian Journal of Forensic Medicine & Toxicology

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Background: Bones play a vital part in the process of individual identification in medico-legal cases, as they resist decomposition for a long period. The foramen magnum, which is located at the cranial base, is also a good parameter for identifications with reasonable accuracy. The surface area of the foramen magnum can be calculated using 3D reconstructed computer tomography of the head to assess the morphological differences in males and females, which is useful in forensic sciences.Objectives: To measure the antero-posterior length of the foramen magnum, the transverse diameter of the foramen magnum, the surface area of foramen magnum in males and females and to compare surface area of male and female foramen magnum to find morphological difference. Method:CT scan was performed in 40 patients (20+20) in two groups consist male and female, using SIEMENCE SOMATOM 16 SLICE machine, in patients referred to Acharya Vinoba Bhave Rural Hospital for CT head scan with 3D skull. Scan will include the vertex to C3, received images then reconstructed into 3D images. From the 3D images the foramen magnum was measured; anterior-posterior, transverse and surface area in two groups of patients includes males and female. Teixeria's and Radinsky's formulae was used. Descriptive analysis to measure area of foramen magnum. Independent sample T test to determine any significant difference between male and female foramen magnum area and Discriminant analysis.Result: 70% of original group cases were correctly classified using the derived data Conclusion: foramen magnum can be used in forensic science as gender determination tool in the case where other identifying methods are inconclusive and modern imaging technology can be very useful.

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“…Pemanfaatan teknologi yang advance pada pengukuran mastoid process manusia dapat dilakukan menggunakan modalitas CT scan dikarenakan hasilnya dapat meningkatkan akurasi analisis kerangka manusia terutama dalam penentuan jenis kelamin (Allam and Allam, 2016). Modalitas CT scan memiliki keunggulan yaitu dapat memberikan gambaran yang bagus pada anatomi tulang manusia (Bilfeld et al, 2011).…”

Section: Pendahuluanunclassified

Comparation of Mastoid Triangle Area Measurement Techniques Using Volume Rendering Post Processing and Multi Planar Reformation

2020

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Background: Identification in the anthropology of the forensic world using radiographic methods can be evaluated from variations in the human skeleton. The skull is the most dimorphic part of the skeleton, precisely in the temporal bone, namely the mastoid process. The use of advanced radiological technology in the evaluation of the mastoid process in humans can be done using the CT scan modality. Purpose: To determine the measurement results of the total area of the mastoid triangle using post processing volume rendering and multi planar reformation. Method: This type of research is an analytic observational study with a retrospective approach. The number of samples used were 152 raw data of patients with criteria aged 26-65 years and without any pathological changes in the mastoid process area. This research uses simple random sampling technique. Measurements were carried out 10 times by using 2 gauges, and using 3D slicer software on volume rendering and multi planar reformation reconstruction data. Data were analyzed using the free sample T test. Result: Measurer A produces total area of mastoid triangle using volume rendering is 1165.72 ± 1.2506 and multi planar reformation is 1145.84 ± 1.46512, with a significance value of 0.204 (p > 0.05). Similar results were obtained by measuring B. Measurer A produced a total area of mastoid triangle using volume rendering is 1159.91 ± 1.29691 and an multi planar reformation is 1146.56 ± 1.4606, with a significance value of 0.400 (p > 0.05). Conclusion: The results indicated that there was no significant difference in the results of measuring the total area of mastoid triangle using post processing volume rendering and multi planar reformation.

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Sex discrimination of mastoid process by anthropometric measurements using multidetector computed tomography in Egyptian adult population

Cited by 18 publications

References 11 publications

Osteometric Estimation of Sex From Mastoid Triangle in Malaysian Population

Osteometric Estimation of Sex From Mastoid Triangle in Malaysian Population

Evaluating Foramen Magnum Surface Area in Males and Females for Morphological Differences Using 3D Computed Tomography Among Maharashtrian Population

Comparation of Mastoid Triangle Area Measurement Techniques Using Volume Rendering Post Processing and Multi Planar Reformation

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