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Updated: Jul 23, 2026

Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma
Published on: August 9, 2016
Helical CT evaluation in the preoperative staging of gastric adenocarcinoma
R Gamón Giner1, J Escrig Sos, J L Salvador Sanchís
1General and Digestive Service, Hospital General de Vinaroz, Castellón, Spain. rgamon@comcas.es
Introduction:
The aim of this study is to evaluate helical CT as a basic preoperative test for the staging of gastric adenocarcinoma.
Material And Method:
We enrolled 50 patients with a diagnosis of gastric adenocarcinoma, evaluated helical CT scans, and compared their findings to the microscopic, pathology-confirmed ones obtained by laparotomy. UICC's TNM classification, 5th edition (May 1997), was used.
Results:
Best results regarding Sensitivity were obtained in the diagnosis of lymph node disease (83%; 69-92%); regarding specificity we obtained 92% (79-98%) for T4, and 89% (77-96%) in metastasis detection. Accuracy was 70% for T1-T2, and 62% for T3.
Conclusions:
1. For the T category, helical CT effectively detects advanced cases classified as non-resectable. 2. For the N category, helical CT prediction is better than ever before with previous CT generations. 3. For the M category, helical CT is a useful test to identify the presence of liver metastases that would render surgery unnecessary.
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