Which of the following tracers is most commonly used in Positron Emission Tomography (PET) to assess brain activity?
1
Technetium-99m (Tc-99m)
2
Iodine-123 (I-123)
3
Fluorodeoxyglucose (FDG)
4
Gallium-67 (Ga-67)
Which of the following tracers is most commonly used in Positron Emission Tomography (PET) to assess brain activity?