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=500 s/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)x10⁻³mm²/s in hemangioma and (1.851±0.364)x10⁻³mm²/s in venous malformation, and from b value of 1000 s/mm² was (0.728±0.256)x10⁻³mm²/s in hemangioma and (1.200±0.228)x10⁻³mm²/s in vein malformation. There was significant difference between both lesions (P<0.01).
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.