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000861682 1001_ $$0P:(DE-Juel1)156479$$aStegmayr, Carina$$b0
000861682 245__ $$aO‑(2‑[18F]‑fluoroethyl)-L‑tyrosine (FET) in neurooncology: A review of experimental results
000861682 260__ $$aSharjah$$bBentham Science Publ.$$c2019
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000861682 520__ $$aIn recent years, PET using radiolabelled amino acids has gained considerable interest as an additional tool besides MRI to improve the diagnosis of cerebral gliomas and brain metastases. A very successful tracer in this field is O-(2-[18F]fluoroethyl)-L-tyrosine (FET) which in recent years has replaced short-lived tracers such as [11C]-methyl-L-methionine in many neuro-oncological centers in Western Europe. FET can be produced with high efficiency and distributed in a satellite concept like 2- [18F]fluoro-2-deoxy-D-glucose. Many clinical studies have demonstrated that FET PET provides important diagnostic information regarding the delineation of cerebral gliomas for therapy planning, an improved differentiation of tumor recurrence from treatment-related changes and sensitive treatment monitoring. In parallel, a considerable number of experimental studies have investigated the uptake mechanisms of FET on the cellular level and the behavior of the tracer in various benign lesions in order to clarify the specificity of FET uptake for tumor tissue. Further studies have explored the effects of treatment related tissue alterations on tracer uptake such as surgery, radiation and drug therapy. Finally, the role of blood-brain barrier integrity for FET uptake which presents an important aspect for PET tracers targeting neoplastic lesions in the brain has been investigated in several studies. Based on a literature research regarding experimental FET studies and corresponding clinical applications this article summarizes the knowledge on the uptake behavior of FET, which has been collected in more than 30 experimental studies during the last two decades and discusses the role of these results in the clinical context. 
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000861682 7001_ $$0P:(DE-Juel1)144347$$aWilluweit, Antje$$b1
000861682 7001_ $$0P:(DE-Juel1)145110$$aLohmann, Philipp$$b2
000861682 7001_ $$0P:(DE-Juel1)131777$$aLangen, Karl-Josef$$b3$$eCorresponding author
000861682 773__ $$0PERI:(DE-600)2433114-4$$a10.2174/1874471012666190111111046$$gVol. 12$$n3$$p201-210$$tCurrent radiopharmaceuticals$$v12$$x1874-4710$$y2019
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