18F-LN1 PET/CT in Urothelial Carcinomas

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