Artificial Intelligence-Based Early Warning for Distant Metastasis in Malignant Tumors

Inclusion Criteria

Inclusion Criteria: 1. Aged ≥ 18 years old; 2. Diagnosed with malignant tumor confirmed by histopathology; 3. No distant metastasis detected at baseline enrollment assessment; 4. Regular imaging examinations for distant metastasis assessment are scheduled in the routine follow-up protocol after enrollment; 5. Complete baseline clinicopathological data are available; 6. Patients provide informed consent and permit researchers to collect and analyze their subsequent imaging and clinicopathological data. Exclusion Criteria: 1. Concurrent presence of two or more primary malignant tumors; 2. Presence of any medical or social factors that may interfere with completion of routine imaging follow-up.