False-positive findings on 6-[18F]fluor-l-3,4-dihydroxyphenylalanine PET (18F-FDOPA-PET) performed for imaging of neuroendocrine tumors
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چکیده
منابع مشابه
Imaging of advanced neuroendocrine tumors with (18)F-FDOPA PET.
UNLABELLED Nuclear medicine plays an important role in the imaging of neuroendocrine tumors (NETs). Somatostatin receptor scintigraphy (SRS) with (111)In-labeled somatostatin receptor analogs is a standard procedure for the detection and staging of NET. Based on the ability of NETs to store biogenic amines, this study evaluated whether 6-(18)F-fluoro-L-DOPA ((18)F-FDOPA) is a suitable PET trace...
متن کامل18F-FDOPA PET imaging of brain tumors: comparison study with 18F-FDG PET and evaluation of diagnostic accuracy.
UNLABELLED We evaluated the amino acid and glucose metabolism of brain tumors by using PET with 3,4-dihydroxy-6-(18)F-fluoro-l-phenylalanine ((18)F-FDOPA) and (18)F-FDG. METHODS Eighty-one patients undergoing evaluation for brain tumors were studied. Initially, 30 patients underwent PET with (18)F-FDOPA and (18)F-FDG within the same week. Tracer kinetics in normal brain and tumor tissues were...
متن کامل18F-FDOPA PET and PET/CT accurately localize pheochromocytomas.
UNLABELLED Successful treatment of pheochromocytoma requires accurate diagnosis and localization of tumors. Herein, we investigated the accuracy of PET using 3,4-dihydroxy-6-(18)F-fluoro-phenylalanine ((18)F-FDOPA), an amino acid transporter substrate, as an independent marker for detection of benign and malignant pheochromocytomas. METHODS The study comprised 25 consecutive patients (9 men, ...
متن کامل6-L-18F-fluorodihydroxyphenylalanine PET in neuroendocrine tumors: basic aspects and emerging clinical applications.
In recent years, 6-l-18F-fluorodihydroxyphenylalanine (18F-DOPA) PET has emerged as a new diagnostic tool for the imaging of neuroendocrine tumors. This application is based on the unique property of neuroendocrine tumors to produce and secrete various substances, a process that requires the uptake of metabolic precursors, which leads to the uptake of 18F-DOPA. This nonsystematic review first d...
متن کاملDiagnosis of Brain Tumors Using Amino Acid Transport PET Imaging With 18F- Fluciclovine: A Comparison Study With L-Methyl-11C-Methionine PET Imaging
Objective(s): 18F-fluciclovine (trans-1-amino-3-[18F] fluorocyclobutanecarboxylic acid, [FACBC]) is an artificial amino acid radiotracer used for positron emission tomography (PET) studies, which is metabolically stable in vivo and has a long half-life. It has already been shown that FACBC-PET is useful for glioma imaging. However, there have been no reports evaluating the efficiency of FACBC-P...
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ژورنال
عنوان ژورنال: European Journal of Endocrinology
سال: 2018
ISSN: 0804-4643,1479-683X
DOI: 10.1530/eje-18-0321