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Amino acids are valuable tracers for brain tumor imaging with positron emission tomography (PET). In this study the transport of O-(2-[ 18 F]fluoroethyl)-d-tyrosine (d-FET) across the blood–brain barrier (BBB) was studied with PET in anesthetized piglets and patients after subtotal resection of brain tumors and compared with O-(2-[ 18 F]fluoroethyl)-l-tyrosine (l-FET) and 3-O-methyl-6-[...
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