The aim of this non randomised retrospective study is to investigate the imaging (MRI) of auto-immune encephalitis at presentation, especially in diffusion-weighted sequences. Indeed, few series describe the MRI aspect of auto-immune at their beginning. Recognize early MRI abnormalities seen in auto-immune encephalitis could help reduce the time to positive diagnosis and improve the therapeutic management.
Study Type
OBSERVATIONAL
Enrollment
80
The radiologist will analyze the MRI of patients with proved auto-immune encephalitis realized at presentation of the symptoms. If available, the following-up MRIs will also be analyzed. At each assessment, four MRI sequences will be studied : diffusion, T2-weighted, susceptibility sensitive sequences, and T1 weighted after contrast enhanced with gadolinium. The radiologist will analyse the signal abnormalities, their localisation and the trophicity of the brain. We will then correlate the following clinical data collected for patients : age, sex, clinical presentation, clinical evolution, and tumor associated or not.
Hospices Civils de Lyon
Pierre-Bénite, France
RECRUITINGMRI characterization, especially in Diffusion-weighted magnetic resonance imaging (DWI-MRI), of auto-immune encephalitis at presentation.
The radiologist will analyze the MRI of patients with proved auto-immune encephalitis realized at presentation of the symptoms. If available, the following-up MRIs will also be analyzed. At each assessment, four MRI sequences will be studied : diffusion, T2-weighted, susceptibility sensitive sequences, and T1 weighted after contrast enhanced with gadolinium. The radiologist will analyse the signal abnormalities, their localisation and the trophicity of the brain. We will then correlate the following clinical data collected for patients : age, sex, clinical presentation, clinical evolution, and tumor associated or not.
Time frame: at following-up until 24 months
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