Imaging Protocol and Analysis
ICH, hematoma, hemorrhage, CE
HEMORRHAGE, HEMATOMA, EDEMA
Computed tomography was performed on admission and repeated at 24 h after symptom onset. MRI was performed at two time points: the first MRI was performed at day 3 post ICH, and the second MRI was performed within 7 to 12 days after ICH onset. For hematoma and PHE volume detection, manual segmentation on 3D fluid-attenuated inversion recovery data was measured by ITK-SNAP analysis software. Blinded interpretation of MRI for DWI and hemorrhage was conducted, with subsequent quantification of ADC values. CE was defined as an elevated DWI b1000 signal and an ADC value reduced by > 10% compared with the mirror area of interest [Example of cytotoxic edema (CE) on magnetic resonance imaging. 