Morphometric Craniometry study in Human Dry Skulls and High Resolution Scans in the South Indian Adult Population

Kesavan, V A (2020) Morphometric Craniometry study in Human Dry Skulls and High Resolution Scans in the South Indian Adult Population. Masters thesis, PSG Institute of Medical Sciences and Research, Coimbatore.

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Abstract

INTRODUCTION: Craniometry is the technique of measuring the various dimensions of bones of the skull. By using cephalic index, orbital index and Auriculo vertical indices, skull types can be determined. Results of craniometry also provide crude data for pediatrics, cop surgeons, plastic surgeons, dentistry and diagnostic comprehension between patient and normal population. AIM OF THE STUDY: To study the prevalence of various skull types in the South Indian population, by assessing the different craniometric indices. OBJECTIVES: To measure the Cephalic index, Orbital index, Auriculo vertical index in the South Indian adult population in human dry skulls, and also in CT scan and MRI scan images. MATERIALS AND METHODS: 40 dry skulls without any skull malformation of both male and female were included in the study. Cranial indices were measured using vernier calipers and sliding calipers. 100 CT scan images and 100 MRI scan images of skull, excluding images of malformed skulls, Road traffic accidents and neurosurgery cases, were included to assess the various cranial indices. RESULTS AND ANALYSIS: Mean cephalic index: in dry skull: 75.72 ± 4.63, in Computerized Tomography scan images: 75.21 ± 3.64, in Magnetic Resonance Imaging scan images: 73.37 ± 3.02. Mean Orbital index: in dry skull: 82.74 ± 5.54, in Computerized Tomography scan images: 87.56 ± 3.74, in Magnetic Resonance Imaging scan images: 87.31 ± 3.12. Mean Auriculo vertical index: in dry skull: 76.19 ± 3.81, in Computerized Tomography scan images: 72.77 ± 4.81, in Magnetic Resonance Imaging scan images: 71.78 ± 3.67. The commonest skull type by cephalic index is dolichocephalic in dry skull (18 out of 40 dry skulls- 45%), in Computerized Tomography scan images (43 images out of 100- 43%) as well as in Magnetic Resonance Imaging scan images (54 images out of 100- 54%). The commonest type of orbit by orbital index is Mesoorbit in dry skulls (21 out of 40 skulls-52.5%), in Computerized Tomography scan images (54 images out of 100- 54%) and in Magnetic Resonance Imaging scan images (58 out of 100 Magnetic Resonance Imaging scan images- 58%). The commonest skull type by Auriculo vertical index is Hypsicephalic in dry skulls (all 40 skulls-100%), in Computerized Tomography scan images (93 images out of 100 images- 93%) and also in Magnetic Resonance Imaging scans images (91 images out of 100 images- 91%). CONCLUSION: In the present study, craniometrical measurements were analysed among tamilnadu population which showed variations when compared with other population of different geographical areas and races. This study provides a solid platform to take the craniometric indices research to higher level.

Item Type: Thesis (Masters)
Additional Information: 201733252
Uncontrolled Keywords: Cephalic index, Orbital index, Auricuoverical index, Dry skull, CT and MRI scan images.
Subjects: MEDICAL > Anatomy
Depositing User: Subramani R
Date Deposited: 06 Feb 2021 04:27
Last Modified: 06 Feb 2021 04:27
URI: http://repository-tnmgrmu.ac.in/id/eprint/13921

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