Abstract: Objective The more accurate calculate method was investigated according to the improved formula of intracranial hematoma using segment deducing.Methods The improved formula was deduced to calculate the intracranial hematoma using the volume formula of the solid geometry.The volume of intracranial hematoma was measured as a related accurate standards using software.The volumes of intracranial hematoma calculated by the improved formula,Tada’s formula and the software were compared.Results The measure accuracy of the improved formula was higher than that of Tada’s formula,and showed a similarity with that by using software method.Conclusion The improved formula method shows a more accurate result than Tada’s formula,and can be used in forensic practice.

Key words: forensic medicine, intracranial hemorrhage, traumatic, volume