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Histograms showing the difference in ADC values (×10−6 mm/s2) compared with the first scan (T1.1). T1.1 and T1.2 were obtained on the same day. T2 was 1 month later. T1.2–T1.1: mean, 6 × 10−6 mm/s2; SD, 310 × 10−6 mm/s2. T2–T1.1: mean, −5 × 10−6 mm/s2; SD, 310 × 10−6 mm/s2).
