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This study prospectively collected spectral CT imaging data and clinical information related to gastric cancer, evaluated the diagnostic efficacy of its image quality for regional lymph nodes in gastric cancer, and explored its application value in the N staging of gastric cancer with different MSI statuses, so as to provide a more accurate evidence for clinical diagnosis, promote the development of individualized treatment for gastric cancer, and ultimately improve the prognosis of patients.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Spectral CT combined with MSI for predicting regional lymph node metastasis in gastric cancer | Experimental | Medical images and clinical data related to gastric cancer were prospectively collected using a Philips Quark CT scanner, and its diagnostic accuracy and clinical application value in gastric cancer patients with different MSI statuses were evaluated to achieve accurate staging of gastric cancer. Patients diagnosed with gastric cancer at Yunnan Cancer Hospital from August 2025 to December 2026 were consecutively enrolled. After undergoing Philips Quark CT scanning, the N stage of gastric cancer was independently assessed by two radiologists, and statistical analysis was subsequently performed for the final results. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| o explore the value of spectral CT in the diagnosis and treatment of gastric cancer with different MSI statuses | Diagnostic Test | Abdominal CT scans were performed in addition to conventional treatment regimens |
| Measure | Description | Time Frame |
|---|---|---|
| Pathological N stage | The lymph node status confirmed by surgical pathology was used as the reference standard | 1 day |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Ye Lianhua, Study Director | Ethics Committee of Yunnan Provincial Cancer Hospital | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Yunnan Cancer Hospital | Kunming | Yunnan | China |
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| ID | Term |
|---|---|
| D013274 | Stomach Neoplasms |
| ID | Term |
|---|---|
| D005770 | Gastrointestinal Neoplasms |
| D004067 | Digestive System Neoplasms |
| D009371 | Neoplasms by Site |
| D009369 | Neoplasms |
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| D004066 |
| Digestive System Diseases |
| D005767 | Gastrointestinal Diseases |
| D013272 | Stomach Diseases |