Study On The Diagnostic Value Of Suscepetiblity Weighted Imaging In Mild Traumatic Brain Injury

Objective: To investigate the value of magnetic suscepetiblity weighted imaging(MR SWI)in the diagnosis of mild traumatic brain injury(MTBI).Methods:The clinical imaging data of 109 MTBI patients who hospitalized in neurosurgery of the First People’s Hospital of Qinzhou City from October01,2018 to October 01,2019 were retrospectively analyzed.All patients’ brain were under the examination of MR SWI,common CT scan and common MR scan.Detection rate of positive lesions in MTBI patients by the three method were compared.To compare the three methods detection rates of who have positive lesions in the MTBI patients.In terms of MR SWI,To compare the three methods detection rates of who have positive lesions in the cortex,basal ganglia,cerebellum and brainstem alone.Chi-square test was used,Fisher’s exact test was used when the chi-square test conditions were not met,and Bonferroni method was used to correct the test level between groups.P<0.05 was taken as the test level.Results:(1)Of the 109 MTBI patients,A total of 61 cases(55.96%)were MR SWI detected.A total of 40 cases(36.67%)with positive lesions were detected common MR scan.A total of 29 cases(26.61%)were detected in common CT scan.There was significant differences in the detection rate of positive lesions(P<0.05).The detection rate of MR SWI cases with positive lesions was higher than that of common MR scan(P<0.016)and common CT scan(P<0.016).(2)In the cortex,MR SWI’S detection rate of cases with positive lesions was higher than normal CT scan(P<0.016),There was no difference with common MR scan(P>0.016).In the basal ganglia,MR SWI’s detection rate of cases with positive lesions was higher than that of normal CT scan(P<0.016)and common MR scan(P<0.016).In the cerebellum,MR SWI’s detection rate of cases with positive lesions was higher than common CT scan(P<0.016).There was no difference with common MR scan(P>0.016).In the brainstem,There was no difference between the MR SWI’S detection rate of cases with positive lesions and the common CT scan,common MR scan.(3)In terms of MR SWI,detection rate of cases with positive lesions in cortex,basal ganglia,cerebellum and brainstem were significantly different(P<0.05).The rate of positive lesions cases in cortical area(47.70%)was higher than that in basal ganglia(10.09%,P<0.008)and positive lesions cases in the cerebellum(8.25%,P<0.008),Cases of positive lesions in basal ganglia and in cerebellum were not statistically different(P>0.008),Cases with positive lesions in cortex,basal ganglia and cerebellum were more than brainstem(0%,P<0.008).Conclusion:(1)More cases with positive lesions can be detected by MR SWI in MTBI patients than that by common CT scan and common MR sequences.Although some patients who was no obvious in clinical manifestation or in mild clinical manifestation,By MR SWI more patients with positive lesions could be found,and thus provide a more reliable imaging basis for the early diagnosis,full assessment of the condition,early treatment and prognosis evaluation of MTBI patients.(2)The detection rate of MR SWI in the cortex,basal ganglia region,and cerebellum is significantly higher than that of common CT scan.While the detection rate of MR SWI is only found in The basal ganglia area significantly higher than common MR scan.It suggestes that the MR SWI might be different in detecting lesions with different intracranial structures.(3)MR SWI examination found that the cortex was the site of the most MTBI injury,but the detection rate of the cases involving the basal ganglia and cerebellum was not different,and the detection rate of the cases involving the brain stem was the lowest.According to diagnosis and treatment of MTBI patients,we should focus on the imaging images according to the clinical manifestations and signs of the patients and the probability of occurrence of the positive lesions.