FIG 1. Images obtained in three patients in group B who had hyperintense regions at initial DWI that appeared normal at follow-up. Region 1 is DWI-hyperintense tissue that was abnormal at follow-up imaging. Region 2 is DWI-hyperintense tissue that was normal at follow-up imaging.

A, ADC values in square millimeters per second.

B, ADC ratios.

C, DWI ratios.