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- W2600786494 abstract "Although Somastostatin (SS) scintigraphy (SRS) has been introduced many years ago, it remains the most diffuse radionuclide diagnostic tool in patients with neuroendocrine tumours (NETs). Being SS receptors (SSTR) expressed in the majority of NETs, radiolabeled SS analogues (SS-A) provide high diagnostic accuracy, mainly in patients with gastro-entero-pancreatic (GEP) tumors. SSTR are the best target for radiotracers used either for diagnostic and therapeutic purposes in NETs due to their presence on the surface of neoplastic cells of clinical interest. 111In- DTPA-octreotide (111In-Pentetreotide, Octreoscan®), may detect either primitive or secondary lesions in the presence of a satisfactory lesion/background ratio. The unsatisfactory diagnostic performance of 18F-Fluorodeoxyglucose (18F-FDG), in NETs stimulated the synthesis of more specific positron-emitting tracers and SS-A labeled with 68Gallium (DOTA-peptides) represent actually the best radionuclide procedure for NET imaging. Alternative radiotracers, labeled either with gamma or positron emitters and showing different uptake mechanisms, as 18F-DOPA (Fluorine- 18-L-dihydroxyphenylalanine), have also been proposed and clinically utilized. Octreoscan®, despite its limitations, continue to represent the most frequently used method in evaluating the response to treatment and in follow-up of patients with NET, although the better diagnostic accuracy of DOTA-peptides." @default.
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- W2600786494 date "2017-08-24" @default.
- W2600786494 modified "2023-09-26" @default.
- W2600786494 title "Nuclear Medicine in Patients with NET: Radiolabeled Somatostatin Analogues and their Brothers" @default.
- W2600786494 doi "https://doi.org/10.2174/1874471010666170323115136" @default.
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