Figure 1

Alteration of the lesion size. A: Scatter graphs of the ratios (T2WI/DWI) of edaravone(-) group (open circle) and edaravone(+) group (closed circle). B: The average ratio in edaravone(-) group (white bar) and edaravone(+) group (black bar) in 1-2 months, 3-6 months, 7-12 months and ≥13 months. The regression lines indicate in dotted line as edaravone(-) group (y = 1.10-0.03x, R² = 0.11, p = 0.001) and in black line as edaravone(+) group (y = 0.78-0.01x, R² = 0.04, p = 0.031). The average ratio is significantly lower in the edaravone(+) group compared with edaravone(-) group in 1-2 months, 3-6 months and 7-12 months. *: p < 0.05, **: p < 0.01.