Overview
The goal of this retrospective observational study is to compare brain fluorodeoxyglucose-positron emission tomography (FDG-PET) of patients with autoimmune encephalitis, normal controls and patients with Alzheimer's disease (AD). The main question it aims to answer is:
•is there a specific pattern of brain metabolism in patients with autoimmune encephalitis Participants data and images will be retrospectively collected from hospital records, and FDG-PET images will be analyzed by means of statistical parametric mapping (SPM). Controls will be selected from validated public databases.
Eligibility
Inclusion Criteria:
- Diagnosis of autoimmune encephalitis according to clinical criteria
- Brain magnetic resonance imaging performed between clinical presentation and treatment
- Cerebrospinal fluid analysis performed between clinical presentation and treatment
- Brain FDG-PET performed between clinical presentation and treatment
- Autoantibodies testing performed between clinical presentation and treatment
Exclusion Criteria:
- Refusal to give consent for the study