Evaluation of MR diffusion-weighted imaging (MR-DWI) between head and neck hemangioma and venous malformation in children

PURPOSE: To analyze and evaluate the MR diffusion-weighted imaging(MR-DWI) features of head and neck hemangioma and venous malformation in children.METHODS: We retrospectively observed 10 head and neck hemangiomas and 40 head and neck venous malformations in children,which underwent both conventional MR imaging and MR-DWI.In the MR-DW images,the apparent diffusion coefficient(ADC) mean value was taken from b=500s/mm2 and 1000 s/mm2,The data was analyzed using SPSS13.0 software package for t test.RESULTS: The mean ADC obtained from b value of 500 s/mm2 was(1.227 ±0.324) ×10-3mm2/s in hemangioma and(1.851 ±0.364) ×10-3mm2/s in venous malformation,and from b value of 1000 s/mm2 was(0.728±0.256)×10-3mm2/s in hemangioma and(1.200±0.228)×10-3mm2/s in vein malformation.There was significant difference between both lesions(P0.01).CONCLUSION: There are different features in MR-DWI between head and neck hemangioma and venous malformation in children,which may be helpful for radiological differential diagnosis.