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TABLE 1: ROI- and pixel-based ADC and signal intensity values in each ROI
Value ROI_DWICORE (n = 54) ROI_IG (n = 64) ROI_FINAL (n = 73) Mirror ROI_DWI ROI_CONTIG ROI_CONTINF
Mean ROI 
    ADC (10⁻³ mm²/s) 0.56 ± 0.11 0.71 ± 0.11 0.63 ± 0.11 0.82 ± 0.13 0.81 ± 0.10 0.81 ± 0.09
    ADC ratio 0.67 ± 0.12 0.88 ± 0.10 0.77 ± 0.13 1.00 ± 0.07 0.99 ± 0.05 1.00 ± 0.06
    Signal intensity 278.11 ± 126.49 195.20 ± 84.20 235.88 ± 109.89 164.39 ± 71.94 167.07 ± 69.00 165.93 ± 67.41
    Signal intensity ratio 1.72 ± 0.24 1.17 ± 0.12 1.42 ± 0.27 1.02 ± 0.07 1.00 ± 0.06 1.00 ± 0.06
Pixel 
    ADC (10⁻³ mm²/s) 0.52 ± 0.23 0.70 ± 0.22 0.60 ± 0.25 0.80 ± 0.21 0.78 ± 0.20 0.79 ± 0.18
    ADC ratio 0.63 ± 0.28 0.89 ± 0.27 0.74 ± 0.30 0.99 ± 0.19 0.99 ± 0.23 0.99 ± 0.21
    Signal intensity 271.53 ± 115.39 175.09 ± 64.74 222.45 ± 105.96 153.19 ± 58.32 156.27 ± 55.28 153.25 ± 60.69
    Signal intensity ratio 1.79 ± 0.36 1.14 ± 0.24 1.46 ± 0.45 1.00 ± 0.21 1.00 ± 0.28 1.00 ± 0.16
Note.—Values are the mean ± SD. ROI_CONTIG indicates the mirror ROI of the infarct growth lesion; ROI_CONTINF, mirror ROI of the final infarct. Ratios were determined as the mean signal intensity or ADC values for ROI_DWICORE, ROI_IG, or ROI_FINAL or for ROI_CONTIG or ROI_CONTINF divided by the mean value of the ROI in the affected vascular territory in the contralateral hemisphere.