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Updated: Jun 8, 2026
08:55
A Practical Guide for the Production and PET/CT Imaging of 68Ga-DOTATATE for Neuroendocrine Tumors in Daily Clinical Practice
Published on: April 17, 2019
Update on PET Imaging of Neuroendocrine Neoplasms
Charanjeet Singh1, Mamta Gupta1, Ananya Panda2
1Department of Radiology, University of Colorado, Anschutz Medical Campus, Aurora, CO.
Seminars in Ultrasound, CT, and MR
|June 6, 2026
Summary
Positron emission tomography (PET) enhances neuroendocrine neoplasm (NEN) evaluation. Somatostatin receptor PET is key for treatment selection, while new tracers and hybrid imaging offer improved diagnostics and personalized therapy.
Area of Science:
- Nuclear Medicine
- Oncology
- Radiology
Background:
- Positron emission tomography (PET) complements conventional imaging (ultrasound, CT, MRI) for whole-body tumor biology assessment in neuroendocrine neoplasms (NENs).
- Somatostatin receptor (SSTR) PET is the standard for staging, prognostication, and peptide receptor radionuclide therapy (PRRT) selection in well-differentiated neuroendocrine tumors (NETs).
- 18F-FDG PET identifies aggressive, dedifferentiated NEN components potentially resistant to receptor-targeted treatments.
Purpose of the Study:
- To review current and emerging PET imaging techniques for NENs.
- To highlight advancements in SSTR-targeted PET ligands and alternative molecular targets.
- To discuss the integration of PET with hybrid imaging (PET/MRI, PET/CT) for comprehensive patient management.
Main Methods:
- Review of current Society of Nuclear Medicine and Molecular Imaging/European Association of Nuclear Medicine (SNMMI/EANM) guidelines for SSTR PET/CT.
- Discussion of novel PET tracers including fluorinated SSTR ligands, antagonists, and copper-64 theranostics.
- Exploration of emerging targets (GLP-1R, CXCR4, FAP) and hybrid PET/MRI applications.
Main Results:
- Standardized SSTR PET/CT procedures improve diagnostic consistency.
- Emerging PET ligands and targets show promise for improved NEN characterization and theranostics.
- Hybrid PET/MRI enhances hepatic lesion assessment and reduces radiation exposure in select patients.
Conclusions:
- Integrating advanced PET tracers and hybrid imaging refines risk stratification and PRRT selection for NENs.
- Multi-tracer PET combined with anatomic imaging enables precise longitudinal response assessment.
- Personalized theranostic strategies are advancing for NEN management through novel PET applications.
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