Preoperative diagnosis of gastric tumors by three-dimensional multidetector row CT and double contrast barium meal study: Correlation with surgical and histologic results

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Abstract

Background/purpose: Recent three-dimensional multidetector row computed tomography (3D MDCT) can provide detailed images of a gastric tumor, including its general contour, location and depth. We therefore evaluated the efficacy of MDCT in the differential diagnosis and staging of gastric tumors in patients prepared for surgery. Methods: Seventy-nine patients with gastric tumors identified by gastric optical endoscopy were admitted for preoperative evaluation. All patients received double-contrast barium meal (DCBM) study and abdominal MDCT with 3D reconstruction before surgery. We compared the accuracy of MDCT with DCBM study in detecting and differentiating gastric tumors. In addition, the MDCT findings were correlated with surgical and pathologic results in gastric cancers for Borrmann type, T and N stages. Results: Among the 79 patients with gastric tumors, there were 24 cases of early gastric cancer, 40 cases of advanced gastric cancer, 12 cases of gastrointestinal stromal tumor, and three cases of gastric lymphoma. Both MDCT and DCBM were very accurate in picking up the lesions (100%). The diagnostic accuracies of MDCT and DCBM were similar (94% vs. 96%) in differentiating mucosal and submucosal lesions as well as classification of Borrmann type in advanced gastric cancer (70% vs. 63%). In 64 patients with gastric cancers, there was good correlation between MDCT images and pathology in 73% of T staging and 69% of N staging. Conclusion: MDCT has a similar high accuracy in the preoperative diagnosis of different gastric tumors compared with DCBM and provides additional information including tumor depth, lymph node and hepatic metastasis. Therefore, MDC-F may be used as a primary tool for preoperative tumor diagnosis and staging. © 2007 Elsevier & Formosan Medical Association.

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Chen, B. B., Liang, P. C., Liu, K. L., Hsiao, J. K., Huang, J. C., Wong, J. M., … Yuk, M. T. (2007). Preoperative diagnosis of gastric tumors by three-dimensional multidetector row CT and double contrast barium meal study: Correlation with surgical and histologic results. Journal of the Formosan Medical Association, 106(11), 943–952. https://doi.org/10.1016/S0929-6646(08)60065-0

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