Radiohistological Correlation of Thrombohemorrhagic Remodeling in the Acute Phase of Ischemic Stroke Managed by Decompressive Hemicraniectomy

Addition of a contrast injection and optimized SWI sequences during the pre-DH MRI examination performed as part of the care Addition of two 1x1 cm biopsy samples of cortex in two different non-functional ischemic areas, one of which is within the SWI hyposignal remodeling, during the DH. This will be a cold pial dissection without the use of coagulation.