Clinical Research Directory

Inclusion Criteria: * Adults aged 18-80 years * Patients with suspected or histologically confirmed malignant tumors At least one measurable lesion identified by conventional imaging (CT, MRI, or ultrasound) * Eastern Cooperative Oncology Group (ECOG) performance status of 0-2 * Ability to understand the study procedures and provide written informed consent * Adequate organ function allowing PET/CT examination Exclusion Criteria: * Pregnant or breastfeeding women * Severe hepatic, renal, cardiovascular, or pulmonary dysfunction considered --unsuitable for PET/CT imaging * Known allergy or hypersensitivity to study-related compounds * Patients unable to tolerate PET/CT examination or remain still during image acquisition * Participation in other investigational drug or radionuclide studies within 4 weeks prior to enrollment * Any medical or psychiatric condition judged by the investigators to interfere with study participation or interpretation of imaging results