Assessment of Third Ventricle with MRI: Morphological Variations Among Different Gender and Age Group

Objectives: The aim of the morphometric study was to examine the range in the normal size of the third ventricle in the North Indian population; males and in females living in Punjab and, assess the existence of its relationship with gender and age; and clinically correlate. Materials and Methods: MRI of 300 subjects living in North India 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; the variables were then analyzed statistically. Results: It was observed that the antero-posterior length was 31.33±5.70mm in male, 28.25±2.44mm among female. I ts height 23±2.46mm and 22.61±156mm, the width anterior to the interthalamic adhesion 5.38±1.33mm, 5.73±1.61mm, width posterior to the interthalamic adhesion 6.02±1.42mm, 6.08±1.49mm among both male and female respectively. Conclusion: Advances in surgical instrumentation and knowledge of the morbidities affecting the third ventricle of the brain have lead to this search to establish the normal size of the third ventricles and assess its gender and age variation.