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International Journal of Morphology

On-line version ISSN 0717-9502

Abstract

BAYAT, Parvin-Dokht; GHANBARI, Ali; MORADI, Mojtaba  and  RAOOFI, Amir. The Effects of Age and Sex on Brain Volume. Int. J. Morphol. [online]. 2014, vol.32, n.4, pp.1477-1483. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022014000400056.

Age is associated with substantial macrostructural brain changes. While some recent CT scan studies have reported larger age affects in men than women, others find no sex differences, as brain morphometry is a potentially important tool in diagnosis and monitoring of age-related neurological diseases. A study was conducted on 147 Arakian healthy aged participants in the Department of Radiology, Valie asr Hospital, Arak city. Gray matter (GM), white matter (WM) and CSF was evaluated based on cranial CT scan images. Both males and females subjects were divided into four age groups. In this study, the subjects were 51.7% (76) male and 48.3% (71) female. Frequency of groups showed that the common types were in the 4th group of ages (65.1­80 years) with 44%. Although, in 147cases, all parameters were greater in male than female but no significant differences were seen. The significant differences between the two sexes were in length of cranium and width of cranium. There was significant difference between age groups in male and female. In male groups no significant difference was shown between them, but these were considered statistically significant in female groups in width of cranium (p=0.017), width of gray matter (p=0.008), length of cranium (p=0.052), length of white matter (P=0.024), distance of bicorn anterior (p=0.013), width of white matter in bicoronal Anterior (p=0.046), but in male age groups showed no statistically significant difference. We found changing in brain volume relationship with ageing in population, but this change in female is greater than male.

Keywords : Ageing; CT scan; Morphometry.

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