In a normal 24-hour radionuclide cisternogram, there is ?? activity within the ventricles.

The “hot nose” sign may be seen in brain death and is due to

These images were acquired using F-Dopa. What was this study most likely being used to assess?  

White matter has about 4 times greater blood flow than grey matter.

Cerebrospinal fluid is produced within the

SPECT DatScans in patients with Parkinson’s disease show

An HMPAO image is normal if there is no activity in the brain.

Diamox is used in the diagnosis of

The area of increased uptake on the image represents:  

Tc99m HMPAO binds intracellularly and reaches equilibrium in