Gastric cancer
Conditions
Interventions
Gold Standard:The lymph node status determined by postoperative pathological reports served as the gold standard.
Index test:A CT-based deep learning model for lymph node segmentation and metastasis prediction.
Sponsors
THE FIRST HOSPITAL OF CHINA MEDICAL UNIVERSITY
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1.Histopathological confirmation of primary gastric adenocarcinoma; 2.No restriction on sex, and age >= 18 years; 3.Able to tolerate surgical treatment; 4.No contraindications to laparoscopic surgery; 5.No history of neoadjuvant therapy; 6.No concurrent or previous history of other malignant tumors; 7.No history of gastric surgery; 8.No contraindications to contrast-enhanced CT examination; 9.Underwent contrast-enhanced CT scan of the stomach or abdomen within 4 weeks before surgery, with image quality sufficient for diagnostic assessment and analysis; 10.Able to understand and voluntarily sign the informed consent form; 11.At least 16 lymph nodes dissected and retrieved postoperatively;
Exclusion criteria
Exclusion criteria: 1.Histopathological confirmation of non-adenocarcinoma gastric cancer, secondary gastric cancer, or Epstein–Barr virus (EBV)-associated gastric cancer; 2.Incomplete baseline clinical information; 3.Concurrent or previous history of other malignant tumors; 4.Received neoadjuvant therapy prior to surgery; 5.Unavailable preoperative CT images; 6.Poor image quality or inadequate gastric distension on preoperative CT affecting lesion identification and analysis; 7.Presence of contraindications to contrast-enhanced CT examination; 8.Presence of contraindications to surgical treatment; 9.Underwent emergency surgery due to acute complications; 10.History of prior gastric surgery or confirmed remnant gastric cancer; 11.Underwent palliative gastrectomy or gastroenteric anastomosis; 12.Fewer than 16 lymph nodes dissected and retrieved postoperatively;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Accuracy; | — |
Secondary
| Measure | Time frame |
|---|---|
| Lymph node dimensions;Sensitivity;Specificity; | — |
Countries
China
Contacts
Public ContactZhenning Wang
THE FIRST HOSPITAL OF CHINA MEDICAL UNIVERSITY
Outcome results
None listed