Microstructural and Sodium 7 Tesla Brain MRI in Idiopathic REM Sleep Behaviour Disorder

Inclusion Criteria

• •Patient aged between 40 and 80 years old
• •Patient fulfilling the diagnostic criteria for RBD (International Classification of Sleep Disorders version 3, American Academy of Sleep Medicine, 2014) with polysomnographic confirmation (which will be carried out as part of the routine work-up);
• •UPDRS Part III score under or equal to 5
• •The patient is enrolled in the French social security system
• •The patient understood and signed the consent to participate in the study.
• •Patient aged between 40 and 80 years old
• •Score under or equal 4 for the RBD screening questionnaire
• •UPDRS Part III score under or equal 5
• •The patient is enrolled in the French social security system
• •The patient understood and signed the consent to participate in the study.