Head and neck tumors angiogenesis imaging with 68Ga-NODAGA-RGD in comparison to 18F-FDG PET/CT: a pilot study

S Durante, V Dunet, F Gorostidi, P Mitsakis… - EJNMMI research, 2020 - Springer
S Durante, V Dunet, F Gorostidi, P Mitsakis, N Schaefer, J Delage, JO Prior
EJNMMI research, 2020Springer
Background Angiogenesis plays an important role in head and neck squamous cell
carcinoma (HNSCC) progression. This pilot study was designed to compare the distribution
of 68 Ga-NODAGA-RGD PET/CT for imaging α v β 3 integrins involved in tumor
angiogenesis to 18 F-FDG PET/CT in patients with HNSCC. Material and methods Ten
patients (aged 58.4±8.3 years [range, 44–73 years], 6 males, 4 females) with a total of 11
HNSCC were prospectively enrolled. Activity mapping and standard uptake values (SUV) …
Background
Angiogenesis plays an important role in head and neck squamous cell carcinoma (HNSCC) progression. This pilot study was designed to compare the distribution of 68Ga-NODAGA-RGD PET/CT for imaging αvβ3 integrins involved in tumor angiogenesis to 18F-FDG PET/CT in patients with HNSCC.
Material and methods
Ten patients (aged 58.4 ± 8.3 years [range, 44–73 years], 6 males, 4 females) with a total of 11 HNSCC were prospectively enrolled. Activity mapping and standard uptake values (SUV) from both 68Ga-NODAGA-RGD and 18F-FDG PET/CT scans were recorded for primary tumor and compared with the Wilcoxon signed-rank test. The relation between the SUV of both tracers was assessed using the Spearman correlation.
Results
All HNSCC tumors were visible with both tracers. Quantitative analysis showed higher 18F-FDG SUVmax in comparison to 68Ga-NODAGA-RGD (14.0 ± 6.1 versus 3.9 ± 1.1 g/mL, p = 0.0017) and SUVmean (8.2 ± 3.1 versus 2.0 ± 0.8 g/mL, p = 0.0017). Both 18F-FDG and 68Ga-NODAGA-RGD uptakes were neither correlated with grade, HPV status nor p16 protein expression (p ≥ 0.17).
Conclusion
All HNSCC tumors were detected with both tracers with higher uptake with 18F-FDG, however. 68Ga-NODAGA-RGD has a different spatial distribution than 18F-FDG bringing different tumor information.
Trial registration
NCT, NCT02666547. Registered 12.8.2012.
Springer
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