Diffusion Magnetic Resonance Imaging And Somatosensory Evoked Potentials For Evaluation Of Sever Trauma Brain Injury

Objective:To investigate the quantitative evaluation of MRI diffusion imaging and somatosensory evoked potential for sever trauma brain injury to assess the meaning of illness and prognosis.MethodsAnalysis of the General Hospital of Jinan Military Region neurosurgery in January 2004 ~ May 2008 of 104 cases of inter-hospital patients with severe trauma brain injury (GCS <8 points) of clinical data, Divided into two groups, A group of 42 cases of infarction patients after trauma or injury, another group of 62 cases of severe head injury;Magnetic resonance examination of 20 normal, and patients age, sex matched healthy control group for. All patients underwent head CT,conventional MRI sequences,DWI,DTI.. Infarction after trauma or injury in the infarct group at different times of ultra-early group (<6 hours), sub-acute phase (6 to 24 hours), sub-acute phase group (> 1 ~ 7 days) detection of abnormally high signal-positive cases the number of measuring infarct and contralateral side of ADC values, FA values; 20 normal healthy people, regions of interest were measured: Pons behind,Thalamus,Hyrul,centrum semiovale,the,Posterior limb of internal capsule, Splenium of corpus callosum,The amount of ADC values, FA values; Another group of 62 cases of patients with good prognosis sub-poor prognosis group, more than the same measurement of ADC values from regions of interest, FA values, underwent GCS score,DTI fiber three-dimensional imaging,somatosensory evoked potential examination.Results1 After a traumatic injury or infarction group: DWI of the super-acute phase and the acute phase of cerebral infarction were higher than the detection rate of CT, conventional MRI (P <0.05); Conventional MRI, including FLAIR difficult to show that within 6 hours after injury Hyperacute infarct lesion; super-acute phase and the acute phase of infarct ADC values were significantly lower than contralateral (P <0.01);ADC values in the infarct zone increased gradually with the course of disease, the acute stage and ultra-early ADC values was no significant difference (P>O.05), sub-acute phase ADC values higher than the ultra-early , and than the acute phase (P