Fluoride [18F] Thretide

Primary objectives: 1. To evaluate the diagnostic efficacy of fluorine [18F] sirolimus injection PET/CT imaging for the detection of pelvic lymph node metastasis in patients who are scheduled to undergo radical prostatectomy Secondary objectives: 1. To evaluate the safety of fluorine [18F] sirolimus injection PET/CT imaging in Chinese subjects 2. To evaluate the detection rate of fluorine [18F] sirolimus injection PET/CT imaging for lesions (lymph nodes, bones, and soft tissue metastases) compared with conventional imaging 3. To evaluate the stability of PET images read by independent readers Exploratory objectives: 1. To evaluate the uptake of fluorine [18F] sirolimus injection in the lesion area (bone, lymph nodes, soft tissue, prostate) 2. To evaluate the relationship between the uptake of fluorine [18F] sirolimus injection in the prostate and extraprostatic lesions and the baseline PSA level and the Gleason score at the time of radical surgery

1) Evaluate the pharmacokinetic characteristics of fluoro[18F]sireotide injection 2) Evaluate the biodistribution of fluoro[18F]sireotide injection 3) Evaluate the radiation safety of fluoro[18F]sireotide injection 4) Preliminary evaluation of the safety of fluoro[18F]sireotide injection