Quantitative Comparative Analysis Of Conventional MIRI、DWI And SWI In Diagnosing Cerebral Cavernous Angioma At3.0T MRI Scanner

Part1The Comparative Analysis of Cerebral Cavernous Angioma among DWI、T1WI and T2WIObjectiveTo discuss the sensitivity of diffusion weighted imaging (DWI), and quantitative evaluate the value of DWI over conventional MR sequences (T1WI、T2WIof cerebral cavernous angioma.Material and MethodsRetrospectively analysis of MR images of27cases with cavernous angioma confirmed by pathology (3.0T MRI with T1WI, T2WI and DWI). The number and square of the lesions were measured respectively on T1weighted imaging, T2weighted imaging and diffusion weighted imaging. The size of lesion was compared using paired-sample T test with SPSS13.0. The P value less than0.05was considered statistically significant.ResultsThere were31lesions on T1weighted imaging,35lesions on T2weighted imaging and46lesions on diffusion weighted imaging. The average area of single lesion was (0.80±0.38) cm2,(0.96±0.43) cm2and (1.14±0.56) cm2on T1weighted imaging, T2weighted imaging and diffusion weighted imaging respectively. On Diffusion weighted imaging the square of single lesion was larger than T1weighted imaging and T2weighted imaging, which differences were statistically significant (P <0.05, and the two P values are0.00,0.01). ConclusionThe advantages of display of lesion square on diffusion weighted imaging was obvious. DWI was superior to Ti weighted imaging and T2weighted imaging on number and square of lesions of cerebral cavernous angioma and was important for the clinical diagnosis. Part2Quantitative Analysis of Cerebral Cavernous Angioma on SWIObjectiveTo discuss the sensitivity of susceptibility weighted imaging (SWI), and quantitative evaluate the value of SWI over conventional MR sequences and diffusion weighted imaging (DWI) of cerebral cavernous angioma.Material and MethodsRetrospectively analysis of MR images of27cases with cavernous angioma confirmed by pathology (T1WI,T2WI, DWI and SWI). The number and square of the lesions were measured respectively on T1WI/T2WI, DWI and SWI. The size of lesion was compared using paired-sample T test with SPSS13.0. The P values less than0.05were considered statistically significant.ResultsThere were31lesions on T1WI,35lesions on T2WI,46lesions on DWI and106lesions on SWI. The average area of single lesion was (0.80±0.38) cm2,(0.96±0.43) cm2,(1.14±0.56) cm2and (1.43±0.61) cm2on T1WI, T2WI, DWI and SWI respectively. On SWI number of lesions was showed more than any other sequences. The differences were statistically significant (P<0.05). ConclusionSWI was superior to T1WI、T2WI and DWI on number and square of lesions of cerebral cavernous angioma and was significantly important for the clinical diagnosis.