Image analysis
edema, hemorrhagic, infarct
EDEMA, INFARCT
Ischemic lesions and hemorrhagic areas were segmented using a deep-learning based software developed by Nico.lab.Lesion volumes were obtained by determining the product of the number of voxels within the delineation and the voxel size. Non-hemorrhagic (infarct and edema) volume was defined as the volume of the hypo-dense areas within the lesion, excluding the volume of the hemorrhagic regions. In total we assessed three lesion volumes: non-hemorrhagic, hemorrhagic, and combined volumes. Growth was defined as the difference between these volumes at 1 week and 24 hours resulting in late lesion, non-hemorrhagic and hemorrhagic growth, respectively.