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FIG 2. Histograms of pixel values for ADC ratio (left) and signal intensity ratio (right). Histogram for ADC ratio shows a leftward shift of the curve in ROIIG (B) compared with the curve for normal tissue, or ROICONTIG (C). There is further a leftward shift of ADC ratios in ROIDW image CORE (A) compared with that in infarct growth (B). Histogram of signal intensity ratio shows similar patterns (with a rightward shift). Pixel values for infarct growth and normal tissue significantly overlap. The overlap was greater with the ADC ratio than with the signal intensity ratio.
