INVESTIGATION OF THE PHYSIOLOGICAL PROPORTIONS OF THE HUMAN BRAIN VENTRICLES BY THE METHOD OF COMPUTERIZED-TOMOGRAPHY

The system of the brain ventricles was investigated on 205 examinees b y the method of computerized tomography. The purpose of this research was to define the physiological proportions of the brain ventricles, d ifferences between male and female examinees as well as to determine c haracteristics of the brain ventricles in various age groups. Physiolo gical margins of the brain ventricular system proportions were determi ned and thus the basis for estimation of the cerebrospinal fluid circu lation, necessary in everyday clinical practice, was set. Four origina l indices of the dimensions of the brain ventricles were defined. Thes e indices are an accurate indicator of changes that occur in the ventr icular system with age. Significant differences in the ventricular sys tem proportions between male and female examinees were found, as well as a notable enlargement in the middle-aged and elderly, which is impo rtant for a correct evaluation of atrophic changes of the central nerv ous system.