DOI: 10.36347/sasjm.2016.v02i06.006

Pages: Page: 152-156

The objective of this study is to establish baseline reference values for the third and fourth ventricular dimensions on normal brain Computed Tomography for patients, standardized for sex and age, from a sample pooled from patients who attended Radiology centre at Sree Balaji Medical College and Hospital. Six hundred and eighty five normal brain Computerized Tomograms (CT) of patients aged between ten and ninety years were obtained from our hospital diagnostic radiology centre, in SBMCH. They consisted of 357 males and 328 females. All patients with abnormal imaging findings of various intracranial and intraventricular pathology are not included. The images were analysed on viewing monitor and the measurements were made. The normal measurements of third and fourth ventricle were recorded. The normal measurements were then categorized based on age and sex. Normal third ventricle size was 4.06 ± 2.41 mm for males and 3.25 ± 1.80 mm females. Normal fourth ventricle size was 12.16 ± 2.05 mm in males and 11.38 ± 1.06 mm in females. This study shows variations of ventricular dimensions between males and females. The ventricular dimensions are smaller in females than in males. Our present study also has shown significant differences between male and female in relation to both the third and fourth ventricles measurement.