The value of 16 slice spiral CT gastrography with hypotension and water filling of stomach for gastric cancer staging

CHEN Zhi-lie; WANG Xiao-zhou; LI Xiao-hui; YANG Jing-ping; ZHANG Jian-qing; ZHANG Ding-yi

Journal of China Clinic Medical Imaging ›› 2013, Vol. 24 ›› Issue (12) : 858-860.

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The value of 16 slice spiral CT gastrography with hypotension and water filling of stomach for gastric cancer staging

CHEN Zhi-lie, WANG Xiao-zhou, LI Xiao-hui, YANG Jing-ping, ZHANG Jian-qing, ZHANG Ding-yi

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Abstract

Objective: To assess the value of 16 slice spiral CT gastrography with hypotension and water filling of stomach for gastric cancer staging. Methods: From January 2010 to June 2013, 152 patients diagnosed as gastric cancer by gastroscopy and biopsy underwent multislice CT before surgery. MSCT examination was performed 1 week before operation. The patients were fasting and were given anisodamine hydrochloride 20 mg through muscular injection 10~15 min before scanning, after that 800~1 000 mL pure water was given orally. Scanning position was arranged according to the site of the lesion discovered by endoscopy and biopsy. The CT features of infiltration of the cancer within and outside the gastric wall(T staging), metastatic lymph nodes(N staging), metastases to adjacent organs(M staging) were observed on axial and reformatted images. Results: CT manifestation of thickening of gastric wall, soft tissue mass were seen in the 152 cases, lesion detection rate was 94%. Accurary of T staging was 74.5%. Accurary of N staging and M staging were 63.7% and 83.3% respectively. Conclusion: Contrast enhanced MSCT gastrography of water filling the stomach with hypotension is an effective examination which can raise up the accuracy of TNM staging before operation and also can accurately evaluate local infiltration and distal metastases.

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Stomach neoplasms / Tomography / spiral computed

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CHEN Zhi-lie;WANG Xiao-zhou;LI Xiao-hui;YANG Jing-ping;ZHANG Jian-qing;ZHANG Ding-yi. The value of 16 slice spiral CT gastrography with hypotension and water filling of stomach for gastric cancer staging[J]. Journal of China Clinic Medical Imaging. 2013, 24(12): 858-860