ACR Practice Parameter for the Performance of Gallium-68 DOTATATE PET/CT for Neuroendocrine Tumors.
Radiopharmaceuticals targeting cell surface expression of somatostatin receptors (SSTRs) are particularly useful in the evaluation of neuroendocrine tumors. Gallium-68 DOTA-Tyr-octreotatate (Ga-DOTATATE) primarily binds to SSTR type 2 receptors. Ga DOTATATE PET/CT is proven to have high impact on the management of neuroendocrine patients compared to traditional anatomical imaging as well as provides additional information over that of conventional nuclear medicine studies (indium-III DTPA-octreotide). It can result in change in management of approximately 75% of patients with neuroendocrine tumors. Ga DOTATATE and F FDG PET/CT imaging are complementary, with the degree of uptake varying depending on the degree of differentiation of the tumor. Well-differentiated tumors maintain their SSTRs and are positive on Ga DOTATATE PET/CT scan, while dedifferentiated tumors are less likely to demonstrate uptake of Ga DOTATATE but will demonstrate uptake with F FDG PET/CT. In addition, Ga DOTATATE PET/CT identifies patients with SSTR expression in their tumors, who have progressed on somatostatin analog therapy, for treatment with Lu DOTATATE.
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Related Subject Headings
- Societies, Medical
- Radiopharmaceuticals
- Radiology
- Practice Guidelines as Topic
- Positron Emission Tomography Computed Tomography
- Organometallic Compounds
- Nuclear Medicine & Medical Imaging
- Neuroendocrine Tumors
- Humans
- 3202 Clinical sciences
Citation
Published In
DOI
EISSN
Publication Date
Volume
Issue
Start / End Page
Location
Related Subject Headings
- Societies, Medical
- Radiopharmaceuticals
- Radiology
- Practice Guidelines as Topic
- Positron Emission Tomography Computed Tomography
- Organometallic Compounds
- Nuclear Medicine & Medical Imaging
- Neuroendocrine Tumors
- Humans
- 3202 Clinical sciences