About this trial
Accurate preoperative assessment of gastric cancer stage guides eligibility for endoscopic resection, extent of gastrectomy and lymphadenectomy, selection for neoadjuvant therapy, and use of staging laparoscopy. Contrast-enhanced CT (CECT) is guideline-endorsed for initial staging, yet performance varies across institutions and readers. This study will evaluate an artificial-intelligence (AI) system that analyzes routine CECT to detect gastric cancer and assign four-class T stage (T1-T4) and N stage (N0-N3) .
Eligibility criteria
Qualifiers
pathologically confirmed gastric cancer;
preoperative contrast-enhanced CT performed;
no evidence of distant metastasis on baseline staging;
curative-intent management with complete postoperative histopathology.
Disqualifiers
prior treatment before surgery;
non-diagnostic or poor-quality CT precluding evaluation.
Trial design
Treatments tested in this trial
- CT scan
Treatment groups
Sponsors and collaborators
The First Affiliated Hospital with Nanjing Medical University
Lead sponsor
Jiangsu Cancer Institute & Hospital
Collaborator
Zhengzhou University
Collaborator
Peking University First Hospital
Collaborator