Normal Pressure Hydrocephalus-MRI

1. Ventricular enlargement out of proportion to sulcal atrophy.
2. Prominent periventricular hyperintensity consistent with transependymal flow of CSF. 

3. Prominent flow void in the aqueduct and third ventricle, the so-called jet sign, (presents as a dark aqueduct and third ventricle on a T2-weighted image where remainder of CSF is bright)
4. Thinning and elevation of corpus callosum on sagittal images

Opinion by -Teleradiology Providers