Aim:to study the value of clinic practice in the teaching of imageology.Methods:100 students were divided into practical group and control group.The students of practical group were divided into 5 groups to joined clinic practice of imageology.All students were examined of theory and experiment.Result:All students of practical group passed the examinations,and 80% students of control group passed the examinations.The grades of practical group excelled control group's(P

Objective To make spinal cor injury model of rabbit in order to investigate the feasibility and accuracy of diffusion tensor imaging in diagnosis of early ASCI. Methods In 30 Chinese rabbits ,24 rabbits were randomly selected as the experimental group and the other 6 as the control group. Allen′s technique were used to make moderateacute spinal cord injury in the experimental group. In the control group ,the operation only exposed the spinal membrane ,wihthout damage on the spinal cord. All rabbits were performed in routine MRI , DTI ,diffusion tensor tractography and post-processing. After the MRI scan ,the rabbit spinal cord was removed to have pathological examination at 1 ,3 ,5 ,7 days. Results The number of inflammatory cells and spinal motor neurons were closely correlated with FA values and ADC values. DTT images showed the spinal cord defects, curling and breaking. Conclusion The parameters of DTI (FA ,ADC) can reflect the pathological changes of acute spinal cord injury in early stage ,and therefore may be used as an routine evaluation method for clinical acute spinal cord injury.