Fig. 1

Process of making the ADC histogram. a, b To match the location on the hepatobiliary phase with that on the ADC map, the hepatobiliary phase is superimposed on the ADC map automatically. However, this fusion imaging has some gap and, therefore, some manual correction is necessary. c, d The ROIs were set at the entire tumor through all slices on hepatobiliary phase images (c). Then, the information of this ROI setting was copied and pasted on ADC maps (d)