[Determination of human brain weight in vivo by skull measurements]

The length, width as well as the axial, sagittal and transversal circumferences of the skull were measured before autopsy in 112 cadavers. The brain was weighed immediately after removal. A residual analysis of the correlations between skull measurements and the true brain weight was carried out, resulting in the formula: brain weight, g = (21.8 x axial circumference, cm) + (13.9 x transversal circumference, cm) + (2.105 x length x width, cm) - 890. The mean brain weight as calculated by this formula was within 1.5% of the true weight in the male and within 0.08% in the female cadavers examined.