Cerebral blood flow perfusion tomography

Cerebral blood flow perfusion tomography: Intravenous injection of imaging agents with small molecular weight, no charge and high fat solubility, which can enter the brain cells through the normal blood-brain barrier, and then become water-soluble by the action of hydrolase or lipolytic enzyme Substances or reduced glutathione are decomposed into charged secondary products, thereby remaining in the brain tissue; the amount of imaging agent entering the brain cells is positively correlated with the amount of local cerebral blood flow (rCBF). Because rCBF is generally parallel to local brain function metabolism, this test can also reflect local brain function status to a certain extent.

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