Brain MRI Characteristics of Patients with Anti-N-Methyl-D-Aspartate Receptor Encephalitis and Their Associations with 2-Year Clinical Outcome
BACKGROUND AND PURPOSE: -methyl-D-aspartate receptor encephalitis and their associations with clinical outcome at a 2-year follow-up. MATERIALS AND METHODS: -methyl-D-aspartate receptor encephalitis and performed 2-year follow-up. Brain MRIs were acquired for all patients at the onset phase. The brain MR imaging manifestations were classified into 4 types: type 1: normal MR imaging findings; type 2: only hippocampal lesions; type 3: lesions not involving the hippocampus; and type 4: lesions in both the hippocampus and other brain areas. The modified Rankin Scale score at 2-year follow-up was assessed, and the association between the mRS and onset brain MR imaging characteristics was evaluated. RESULTS: = .043, OR = 0.111; 95% CI, 0.013-0.930) was associated with poor outcome. CONCLUSIONS: -methyl-D-aspartate receptor encephalitis.