Year 2002 / Volume 94 / Number 10
Original
Helical CT evaluation in the preoperative staging of gastric adenocarcinoma

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R. Gamón Giner, J. Escrig Sos, J. L. Salvador Sanchís, J. Ruiz del Castillo, J. H. García Vila y E. Marcote Valdivieso

Abstract
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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R. Gamón Giner, J. Escrig Sos, J. L. Salvador Sanchís, J. Ruiz del Castillo, J. H. García Vila y E. Marcote Valdivieso. Helical CT evaluation in the preoperative staging of gastric adenocarcinoma. 0


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