This study aims to develop a model for predicting postoperative recurrence in patients with LAGC using artificial intelligence (AI) technology based on preoperative computed tomography (CT) images

Inclusion Criteria:

1. pathology diagnosis of LAGC (pT2NxM0-pT4NxM0);
2. radical gastrectomy with D2 lymph node dissection (>15 lymph nodes);
3. available clinicopathological data;
4. patients underwent contrast-enhanced abdominal CT scans within 4 weeks before surgery.

Exclusion Criteria:

1. preoperative treatment for LAGC (radiotherapy, chemotherapy, or systemic therapy);
2. previous malignancies;
3. unsatisfactory gastric distention or inability to identify the primary tumor;
4. image artifacts.

All patients with locally advanced gastric cancer

The datasets used and analyzed in this study are not publicly available due to patient privacy requirements and ethical restrictions