ABSTRACT
The aim of this morphometric study was to examine the range in the normal size of the third ventricle in the North Indian population of males and females living in Punjab and assess its relationship with gender and age. MRI of 300 subjects was examined for various morphometric measurements of the third ventricles of human brain. The study involved normal subjects from birth to 30 years. Measurements were plotted against age in years and gender and the variables were then analyzed statistically. It was observed that the antero-posterior length of the third ventricles was 31.33 +/- 5.70 mm in males and 28.25 +/- 2.44 among females. Its height was 23 +/- 2.46 mm and 22.61 +/- 156 mm, the width anterior to the interthalmic adhesion 5.38 +/- 1.33 mm and 5.73 +/- 1.61 mm, and the width posterior to the interthalmic adhesion 6.02 +/- 1.42mm and 6.08 +/- 1.49 mm among both males and females respectively. The morphometric parameters of the third ventricle studied by MRI in living 150 males and females in Punjab, North India showed that the antero-posterior length is statistically significant from 6-30 years and height significant for 20 years, with these measures being higher in males