Diffusion MRI (IMAGE) Radiological Society of North America Caption Diffusion MRI shows the effect of soccer heading on brain regions. RHI = repetitive head impacts Credit Radiological Society of North America (RSNA) and Michael L. Lipton, M.D., Ph.D. Usage Restrictions May use with credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.