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Updated: Aug 2, 2025
PET and MRI Guided Irradiation of a Glioblastoma Rat Model Using a Micro-irradiator
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Amino Acid PET in Neurooncology
Norbert Galldiks1,2,3, Philipp Lohmann2, Gereon R Fink4,2
1Department of Neurology, Faculty of Medicine, University Hospital Cologne, University of Cologne, Cologne, Germany; norbert.galldiks@uk-koeln.de.
Abstract:
For decades, several amino acid PET tracers have been used to optimize diagnostics in patients with brain tumors. In clinical routine, the most important clinical indications for amino acid PET in brain tumor patients are differentiation of neoplasm from nonneoplastic etiologies, delineation of tumor extent for further diagnostic and treatment planning (i.e., diagnostic biopsy, resection, or radiotherapy), differentiation of treatment-related changes such as pseudoprogression or radiation necrosis after radiation or chemoradiation from tumor progression at follow-up, and assessment of response to anticancer therapy, including prediction of patient outcome. This continuing education article addresses the diagnostic value of amino acid PET for patients with either glioblastoma or metastatic brain cancer.
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