If an interthecal injection is made at the level of L2, at what time should the radiopharmaceutical appear to have ENTERED the ventricular cavities?

I123 ioflupane is used to:

The lumbar injection site is immediately scanned after radiopharmaceutical injection in radionuclide cisternography to

All of the following statements regarding static Tc99m DTPA planar brain images are true EXCEPT:

What type of image acquisition is required for functional cerebral perfusion imaging?

In order to prepare a Tc99m HMPAO kit, the generator should have been eluted previously within the last

In normal physiologic conditions Tc99m Tc04- accumulates in all the following sites EXCEPT the

Advantages of using HMPAO over pertechnetate for brain imaging is that:

Which of the following brain disorders is currently not approved for evaluation using PET?

Biscisate is also known as: