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To evaluate the potential usefulness of 18F-AlF-FAPI positron emission tomography/computed tomography (PET/CT) for the diagnosis of primary and metastatic lesions in gastrointestinal tumors, and compared with 18F-FDG PET/CT.
Subjects with gastrointestinal tumors underwent contemporaneous 18F-AlF-FAPI and 18F-FDG PET/CT either for an initial assessment or for recurrence detection. Tumor uptake was quantified by the maximum standard uptake value (SUVmax). The numbers of positive tumor lesions of 18F-FDG and 18F-AlF-FAPI PET/CT were recorded by visual interpretation. The sensitivity, specificity, and accuracy of 18F-AlF-FAPI, 18F-FDG PET/CT were calculated and compared to evaluate the diagnostic accuracy.
Age
18 - 90 years
Sex
ALL
Healthy Volunteers
No
The First affiliated hospital of xiamen university
Xiamen, Fujian, China
Start Date
June 1, 2022
Primary Completion Date
October 31, 2024
Completion Date
October 31, 2024
Last Updated
August 1, 2025
120
ACTUAL participants
18F-FDG, 18F-AlF-FAPI PET/CT
DIAGNOSTIC_TEST
Lead Sponsor
The First Affiliated Hospital of Xiamen University
NCT06345508
NCT04550494
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