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Study on the Diagnostic Value of Novel PET Molecular Imaging for Renal Cell Carcinoma

This study is a diagnostic study. This project aims to explore the clinical application value of PET imaging technologies targeting PSMA, CAIX, and CD70 in renal cell carcinoma. By utilizing PSMA-targeted PET radiopharmaceuticals (e.g., \[⁶⁸Ga\]Ga-PSMA), CAIX-targeted PET radiopharmaceuticals (e.g., \[⁶⁸Ga\]Ga-DOTA-CAIX), and CD70-targeted PET radiopharmaceuticals (e.g., \[⁶⁸Ga\]Ga-NOTA-CD70 antibody fragment) in patients with clinically suspected or confirmed renal cell carcinoma and healthy volunteers, we will investigate their diagnostic and therapeutic potential. \[⁶⁸Ga\]Ga-DOTA-CAIX peptide as an example), and a PET imaging agent targeting CD70 (\[⁶⁸Ga\]Ga-NOTA-CD70 antibody fragment as an example) in patients with clinically suspected or confirmed renal cell carcinoma and healthy volunteers. Integrated PET/MR or PET/CT imaging will be performed to aid in the diagnosis and staging of renal cell carcinoma, assess tumor burden and the expression levels of PSMA, CAIX, and CD70, and assist in determining treatment strategies. Concurrently, preliminary pharmacokinetic analysis of the novel CAIX-targeting molecular probe will be conducted in healthy volunteers to elucidate its metabolic patterns and adverse reactions in vivo.