The Value of 68Ga-FAPI PET/CT in Preoperative Evaluation of Thyroid Cancer with Lymph Node Metastases

Inclusion Criteria: 1. Pathological and clinical diagnosis of thyroid cancer with lymph node metastases. 2. Signed and dated informed consent form. 3. Commitment to comply with research procedures and co-operation in the implementation of the full research process. 4. Aged 16-80 years old. Exclusion Criteria: 1. Patients with serious illnesses that researchers consider unsuitable for participation in this clinical study. Such as severe heart and lung failure, severe bone marrow suppression, severe liver and kidney dysfunction, etc. 2. Intestinal perforation, complete intestinal obstruction. 3. Pregnant women and women who may be pregnant, women who are breastfeeding. 4. Non-compliant person.