Automatic synthesis of 18F-AlF-NOTA-octreotide and PET/CT imaging in neuroendocrine tumor / 中华核医学与分子影像杂志
Chinese Journal of Nuclear Medicine and Molecular Imaging
;
(6): 478-481, 2022.
Artigo
em Chinês
| WPRIM
| ID: wpr-957163
ABSTRACT
Objective:
To explore the automatic synthesis method of 18F-AlF-1, 4, 7-triazacyclononane-1, 4, 7-triacetic acid (NOTA)-octreotide and the imaging in neuroendocrine tumor (NET).Methods:
Using the Trasis AllinOne synthesis module, 18F-AlF-NOTA-octreotide was automatically synthesized by chelating 18F-AlF and NOTA-octreotide at 100 ℃, and the quality of the product was analyzed. 18F-AlF-NOTA-octreotide and 18F-FDG PET/CT imaging were performed and compared in one patient with NET (male, 35 years old).Results:
The total synthesis time of 18F-AlF-NOTA-octreotide was 35 min with a radiochemical yield of (55.8±1.8%)% (non-decay corrected, n=6), radiochemical purity more than 95% and good stability. The sterility and pyrogen-free of the product met the requirements. Compared with 18F-FDG (the lesion SUV max=3.8, target-to-background (T/B) ratio=1.03), 18F-AlF-NOTA-octreotide could be clearly imaged in the patient with NET with SUV max of 21.7 and T/B ratio of 4.09.Conclusions:
The preparation of 18F-AlF-NOTA-octreotide with Trasis Allinone synthesis module is simple, rapid and stable. The product has high radiochemical purity and can meet the needs of clinical application. In vivo18F-ALF-NOTA-octreotide PET/CT imaging in the patient with NET shows higher T/B ratio, which has obvious advantages compared with 18F-FDG.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Journal of Nuclear Medicine and Molecular Imaging
Ano de publicação:
2022
Tipo de documento:
Artigo
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