Preliminary Study On The Application Value Of SWI In Cerebral Cavernous Hemangioma And Microbleeding

Chapter 1: Application of SWI in cerebral cavernous hemangiomaObjective: By analyzing and comparing conventional MRI sequence images and SWI images,to explore the sensitivity of SWI in the diagnosis of cerebral cavernous hemangioma,and to prove the application value of SWI in cavernous hemangioma of cerebrovascular disease.Methods: Collect 40 patients with cerebral cavernous hemangioma diagnosed by surgery,perform routine T1 WI axial and sagittal,T2 WI axial scanning,and SWI scanning,and compare SWI and conventional MRI through detailed observation of the images The imaging performance and detection status of cavernous hemangioma were statistically analyzed using statistical SPSS21 software,and the chi-square test was used in the detection to compare the detection of cavernous hemangioma with conventional T1 WI,T2WI and SWI The rate difference,P <0.05 difference has significant statistical significance.Results: A total of 51 lesions were detected in 40 patients with cavernous hemangioma,with 31 cases in single cases and 7 cases in multiple cases.The lesions were located 36 above the curtain and 15 below.T1 WI detected 30 cases,T2 WI detected 40 cases,and SWI detected 51 lesions.In terms of the detection rate of cerebral cavernous hemangioma,the detection rate of cavernous hemangioma by SWI is significantly higher than that of T1 WI and T2 WI.X~2 = 26.169,P <0.05,the difference is statistically significant.Conclusion: SWI has good sensitivity for the diagnosis of cavernous hemangioma.The detection rate(100%)of SWI for cavernous hemangioma is significantly better than that of T1 WI and T2 WI.The range of lesions displayed is larger than that of T1 WI and T2 WI.Therefore,SWI has great clinical value in the diagnosis of cerebral cavernous hemangioma.Chapter 2: Application of SWI in Cerebral MicrobleedsObjective: To conduct a rigorous study and comparison between SWI images of patients with cerebral microbleeds and conventional MRI sequence images,to explore the specificity and sensitivity of SWI in the diagnosis of cerebral microbleeds,and to prove the application value of SWI in cerebral microbleeds of cerebrovascular diseases.Methods: Collect 70 patients with cerebral hemorrhage diagnosed by MRI,and perform routine T1 WI axial and sagittal,T2 WI,T2-Flair axial scanning and SWI scanning.Through careful analysis of the images,calcification and bone pseudo-exclusion are excluded Shadows,vascular flow and empty signals,etc.,low signals with a diameter of about 2-5mm,a round shape,clear boundaries,no space-occupying effect and edema around were recorded as positive lesions.Statistical software SPSS21 was used for statistical analysis of the data obtained.Chi-square test was used to detect the lesions,comparing the detection rates of conventional T1 WI,T2WI,T2-Flair and SWI to cerebral hemorrhage,P<0.05 difference It has significant statistical significance.Results: A total of 695 lesions were detected in 70 patients with cerebral hemorrhage,300 on T2 WI,225 on T1 WI,350 on T2-Flair,and 695 on SWI.There were 353 cortex and subcortex,174 basal ganglia,88 thalamus,42 cerebellum and 38 brain stem.On SWI,CMB showed a round shape,a round shape,a clear boundary,no edema at the edges and a low signal of space-occupying effect.CMBs are divided into three groups according to size:CMB <2mm,a total of 340;(2)CMB 2≥mm and <5 mm,355;(3)CMB ≥5 mm,0.In the detection rate of lesions,SWI was significantly higher than T1 WI and T2 WI,T2-Flair,X~2 =779.136,P <0.05,the difference was statistically significant.Conclusion: SWI can better diagnose cerebral hemorrhage,can detect CMBs that are difficult to display on T1 WI,T2WI and T2-Flair,and the lesions are clear.SWI has obvious advantages in the diagnosis of cerebral hemorrhage compared with conventional MRI sequences.