J Korean Radiol Soc.  1994 Apr;30(4):693-696.

Role of Conventional CT for Preoperative Staging of Gastric Carcinoma; A Prospective Study

• Choi BI
• Choi DS
• Han JK

Abstract

PURPOSE
We evaluated the role of conventional CT for preoperative staging of gastric carcinoma.
MATERIALS AND METHODS
Conventional CT was prospectively performed in 95 patients with gastric adenocarcinoma proved by means of endoscopic biopsy, and findings were compared with those of surgery or pathology.
RESULTS
In the evaluation of pancreatic invasion of the primary tumor, the sensitivity, specificity, and diagnostic accuracy of CT were 71%(5/7), 95%(84/88), and 94%(89/95), respectively. CT depicted transverse mesocolon invasion in only one of the 4 cases(25%). In the evaluation of lymph node metastasis, the sensitivity, specificity, and diagnostic accuracy were 33%(24/72), 99%(867/878), and 94%(891/950), respectively. In lymph node staging, 49 patients(52%) were correctly staged, 39(41%) were understaged, and 7(7%) were overstaged with CT. CT failed to demdnstrate peritoneal carcinomatosis in all 10 patients.
CONCLUSION
The role of conventional CT in the preoperative evaluation of gastric adenocarcinoma is limited due to poor sensitivity despite of good specificity and accuracy.

MeSH Terms

Adenocarcinoma
Biopsy
Carcinoma
Humans
Lymph Nodes
Mesocolon
Neoplasm Metastasis
Pathology
Prospective Studies*
Sensitivity and Specificity