Objective To compare the differences between three kinds of reconstruction methods of the multi-planar spiral CT in diagnosing fractures of skull base , in order to appraise fractures of skull base in forensic medical examinations. Method 40 cases with suspicious basio-cranial fractures after cranio-cerebral trauma were examined by multi-planar spiral CT scanning. The data were imported into workstation for ax-ial scanning, multi-planar reconstruction (MPR) and 3D-reconstruction (using SSD). Results In 24 cases with anterior fossa fractures, 9 cases were found by axial scanning, 24 cases by MPR, 9 by SSD. The comparison between these groups showed significant statistical difference (P

Dating of injury and the discrimination in trauma and disease is always an important hot topic in the field of forensic medicine. Lumbar disc herniation is a kind of physiological degeneration. To seek a method for deducing the occurrence time of traumatic LDH exactly, this article reviewed the correlation between humoral, celllur immunity and the occurrence time of LDH. It is suggested that some characteristic changes of the expression of IgG,IgM,macrophages may be a helpful method for the occurrence time deduction of traumatic LDH.

We mainly disscused hearing impedimemt due to damage tothe tympanic membrane which is no more than 50 decibel of hearing loss with describing the signs of traumatic hearing loss, characteristics of its pathology and hearing tests on the basis of 40 eases with traumatic deafness coming to the forensic identification and the forensic identification of hearing Loss with objective data, What ABR audiometry is of great significance has been luther demonstrated in determining hearing Loss whith is supeuior to other hearing tests in distinguishing exaggeration and simulated desfness. We also analyzed rules for seriors hearing loss in Standard for Identifying serious Injury to Human Body(trial draft)from point of classification of hearing loss degree in clinics.