18F-LN1 PET/CT in Urothelial Carcinomas

Clinical Evaluation of 18F-LN1 PET/CT for Imaging of Nectin-4 in Urothelial Carcinomas

The clinical feasibility of 18F-LN1 PET/CT will be evaluated in 30 patients with urothelial carcinoma, and the results will be compared with those of 18F-FDG.

This study aims to evaluate the recognition efficiency of 18F-LN1 and 18F-FDG PET imaging for tumor target Nectin-4 in patients with urothelial carcinoma. The main method is to compare the results of visually interpreted PET images with histopathological results (through surgery or biopsy), which are the gold standard for final diagnosis.

Inclusion Criteria:

• Age 18 and above
• No gender difference
• Patients who have been diagnosed with, or are clinically highly suspected of, urothelial carcinomas and have had no other treatment within 3 months

Exclusion Criteria:

• Hypertension that is difficult to control with medication, and systolic blood pressure exceeding 160mmHg
• Complicated with chronic liver disease, myocardial infarction, stroke
• Female patients who are pregnant (or attempting to become pregnant within six months), breastfeeding, or unwilling to use contraception
• Abnormal cardiopulmonary function or mental state, unable to tolerate prone lying for 20 minutes