New MRI Brain Lesions as Surrogate Outcome for Carotid Stenting With and Without Cerebral Protection To the Editor: We read with great interest the article by Kastrup et al.1 The authors showed that the proportion of patients with any new ipsilateral diffusion-weighted imaging (DWI) lesion (49% versus 67%; P 0.05) as well as the number of new ipsilateral DWI lesions were significantly lower aft...