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

8,000 Participants
are divided into 3 treatment groups

Locations

1
The First Affiliated Hospital of Nanjing Medical University NanjingJiangsu, China

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