18F-HER2 PET in Evaluating the Efficacy of Anti-HER2 Therapy for Urothelial Carcinoma.

Inclusion Criteria: 1. Informed consent document must be signed. 2. Aged 30-80 years old, both genders. 3. Patients with locally advanced or advanced urothelial carcinoma 4. Patients plan to undergo anti HER2 treatment. Exclusion Criteria: 1. Subjects with active malignancies other than urothelial carcinoma within 5 years should be excluded. 2. Patients with severe liver, kidney, and hematopoietic diseases 3. Patients with other mental disorders or primary emotional disorders 4. Those who are unable to understand, comply with the research protocol, or sign an informed consent form 5. PET imaging Contraindication (including pregnant women, lactating women, women of childbearing age who have a recent fertility plan, etc.) 6. Individuals who are allergic to imaging agents 7. Hypoglycemic reactions, severe pain, etc. cannot be accompanied by PET scans