ArticleEuropean journal of nuclear medicine and molecular imaging2016
Direct comparison of (68)Ga-DOTA-TOC and (18)F-FDG PET/CT in the follow-up of patients with neuroendocrine tumour treated with the first full peptide receptor radionuclide therapy cycle.
Article in European journal of nuclear medicine and molecular imaging, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 2 of them syntheses that pooled it.
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Who cites it
42 citing papers in PubMed, 2 syntheses or guidelines pooled it, 92 citations in OpenAlex.
- Theranostic Radiopharmaceuticals of Somatostatin Receptors for Patients with Neuroendocrine Tumors: Agonists Versus Antagonists-A Systematic Review and Meta-Analysis.International journal of molecular sciences · 2025Pooled it
- Consensus document on the progression and treatment response criteria in gastroenteropancreatic neuroendocrine tumors.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2018Guideline
- Semiquantitative SSTR PET metrics show molecular-morphologic discordance after 177Lu-DOTATATE in gastroenteropancreatic neuroendocrine neoplasms: an exploratory paired target-lesion analysis.Annals of nuclear medicine · 2026Article
- Recommendations for selection, treatment, and follow-up in peptide receptor radionuclide therapy (PRRT) for neuroendocrine tumors: a Delphi consensus from the Galician Multidisciplinary Group on Neuroendocrine and Endocrine Tumors (GGNET).Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026Article
- The prognostic effect of dualBMC gastroenterology · 2026Article
- Article
- The role of combined FDG and SST PET/CT in neuroendocrine tumors.Journal of neuroendocrinology · 2025Review
- Prediction of lesion-based response to PRRT using baseline somatostatin receptor PET.Frontiers in medicine · 2025Article
- Peptide PET Imaging: A Review of Recent Developments and a Look at the Future of Radiometal-Labeled Peptides in Medicine.Chemical & biomedical imaging · 2024Review
- Peptide receptor radionuclide therapy combinations for neuroendocrine tumours in ongoing clinical trials: status 2023.Theranostics · 2024Review
- Diagnostic accuracy of SSR-PET/CT compared to histopathology in the identification of liver metastases from well-differentiated neuroendocrine tumors.Cancer imaging : the official publication of the International Cancer Imaging Society · 2023Article
- Prognostic Implications of PET-Derived Tumor Volume and Uptake in Patients with Neuroendocrine Tumors.Cancers · 2023Review
- Diagnosis, Management and Theragnostic Approach of Gastro-Entero-Pancreatic Neuroendocrine Neoplasms.Cancers · 2023Review
- Aggressive Pituitary Tumors and Pituitary Carcinomas: From Pathology to Treatment.The Journal of clinical endocrinology and metabolism · 2023Article
- The predictive impact of dual somatostatin receptor/fluorodeoxyglucose (FDG) positron emission tomography (PET) in metastatic gastroenteropancreatic neuroendocrine tumors (GEP-NETs): review of literature and a single institution experience.Journal of gastrointestinal oncology · 2023Review
- Review
- PET/CT and PET/MRI in neuroendocrine neoplasms.Abdominal radiology (New York) · 2022Review
- Glucose Metabolism Modification Induced by Radioligand Therapy with [Pharmaceutics · 2022Article
- An ACTH-secreting tumour hidden in a congenitally hypoplastic left lung.Interactive cardiovascular and thoracic surgery · 2022Article
- Molecular imaging phenotyping for selecting and monitoring radioligand therapy of neuroendocrine neoplasms.Cancer imaging : the official publication of the International Cancer Imaging Society · 2022Review
Corrections and comments
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Authors and funding
11 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo determine the value of (68)Ga-DOTA-TOC and (18)F-FDG PET/CT for initial and follow-up evaluation of patients with neuroendocrine tumour (NET) treated with peptide receptor radionuclide therapy (PRRT).
methodsWe evaluated 66 patients who had histologically proven NET and underwent both PRRT and three combined (68)Ga-DOTA-TOC and (18)F-FDG PET/CT studies. (68)Ga-DOTA-TOC PET/CT was performed before PRRT, 3 months after completion of PRRT and after a further 6 - 9 months. (18)F-FDG PET/CT was done within 2 months of (68)Ga-DOTA-TOC PET/CT. Follow-up ranged from 11.8 to 80.0 months (mean 34.5 months).
resultsAll patients were (68)Ga-DOTA-TOC PET-positive initially and at follow-up after the first full PRRT cycle. Overall, 62 of the 198 (18)F-FDG PET studies (31 %) were true-positive in 38 of the 66 patients (58 %). Of the 66 patients, 28 (5 grade 1, 23 grade 2) were (18)F-FDG-negative initially and during follow-up (group 1), 24 (5 grade 1, 13 grade 2, 6 grade 3) were (18)F-FDG-positive initially and during follow-up (group 2), 9 patients (2 grade 1, 6 grade 2, 1 grade 3) were (18)F-FDG-negative initially but (18)F-FDG-positive during follow-up (group 3), and 5 patients (all grade 2) were (18)F-FDG-positive initially but (18)F-FDG-negative during follow-up (group 4).(18)F-FDG PET showed more and/or larger metastases than (68)Ga-DOTA-TOC PET in five patients of group 2 and four patients of group 3, all with progressive disease. In three patients with progressive disease who died during follow-up tumour SUVmax increased by 41 - 82 % from the first to the last follow-up investigation.
conclusionIn NET patients, the presence of (18)F-FDG-positive tumours correlates strongly with a higher risk of progression. Initially, patients with (18)F-FDG-negative NET may show (18)F-FDG-positive tumours during follow-up. Also patients with grade 1 and grade 2 NET may have (18)F-FDG-positive tumours. Therefore, (18)F-FDG PET/CT is a complementary tool to (68)Ga-DOTA-TOC PET/CT with clinical relevance for molecular investigation.
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