The cerebral blood pool can be imaged with single photon emission computed tomography (SPECT) and positron emission computer tomography (PET) techniques. The used radiopharmaceuticals are technetium-99m labeled red blood cells (RCBs) for SPECT and O-15 labeled water for PET imaging. Measured can be cerebral blood volume, brain perfusion and cerebral metabolism.

See Cerebral Metabolic Imaging, Fluorodeoxyglucose, Regional Cerebral Blood Flow, Coincidence Detection, Annihilation Coincidence Detection and Cyclotron.

Ischemia refers to a lack of adequate blood flow to an organ, such as the heart or the brain, which may be the result of a blood clot, blood vessel constriction or a hemorrhage.

See also Regional Cerebral Blood Flow, Blood Brain Barrier, Cerebral Blood Pool Imaging and Hematoma.