Assessment of Structural Brain Changes Related to Anoxic Coma Using High-field and Very Low Field Mobile MRI

MRI will be early acquired, as soon as possible after patient hospital admission and always in coma state for patients. For both patients and controls each MRI scanning session will encompass pairs of HF and VLF MRI acquisitions, that will be collected the same day. The main MRI sequences will be: T1, T2, FLAIR and DWI. The VLF spatial resolution recommended by the constructor for all these sequences correspond to voxel size is around 1.5mm/1.5mm/5mm. The total brain scanning time is estimated at 30 minutes.