Fig. 4.
(a) Ratio between the infarct core (IC) and the corresponding contralateral region IC* (IC/IC*) for each spectral parameter; (b) Ratio between the penumbra (PEN) and the corresponding contralateral region PEN* (PEN/PEN*) for each spectral parameter; (c) Ratio between the healthy area (HA) and the corresponding contralateral region HA* (HA/HA*) for each spectral parameter. Statistical comparison was done between the iodine density and every other spectral parameter as well as between the parameters that follow each other in the ratio-values. Boxes show the median with the range from the 25th percentile to the 75th percentile. Whiskers show the range from minimal to maximal values. ns not significant. *: p < 0.05; **: p < 0.005; ***: p < 0.0005; ****: p < 0.0001.\.