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- W2356608392 abstract "Objective To evaluate the role of magnetic resonance imaging(MRI)in the preoperative diagnosis and staging of advanced gastric carcinoma.Method MRI was performed in11mormal subjects and34cases of gastric carcimona multidirectionally and multisequentially,with SE(spin echo)T 1 WI before and after contrast enhanced;SE high-weighed T 2 WI and SPIR images were obtained.These MR evaluations including MR-determined staging correlated with the surgicopathologic findings.Results Two layers of the gastric wall were visible in4normal cases.The gastric carcinoma showed middle-signal-intensity and irregular thickened wall in SE T 1 WI;higher signal-intensity in SE high-wieghed T 2 WI.The degree of extraserosal invasion may be classified by the appearance of low-signal-intensity band.The sensitivity in evaluating T 1 ,T 2 ,T 3 and T 4 classes was40.0%,89.5%,83.3%and100%,respectively.The specificity in evaluating T 1 ,T 2 ,T 3 and T 4 classes was100%,76.9%,92.3%and96.7%.The accuracy in evaluating T 1 ,T 2 ,T 3 and T 4 classes was90.6%,84.4%,90.6%and96.9%,respectively.MRI determined the overall N staging with66.7%sensitivity,72.7%specificity,68.8%accuracy.It had a very high accuracy for detecting the peripheral invasion.The sensitivity,specificity and accuracy of M staging was85.7%,100%and97.1%,respectively.The overall accuracy of MRI in determining TNM-staging and resectability was84.4%and93.8%respectively.Conclusion MRI is very helpful in the diagnosis and staging of gastric carcinoma." @default.
- W2356608392 created "2016-06-24" @default.
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- W2356608392 date "2004-01-01" @default.
- W2356608392 modified "2023-09-28" @default.
- W2356608392 title "Magneitc resonance imaging used in preoperative diagnosis and staging of advanced gastric carcinoma" @default.
- W2356608392 hasPublicationYear "2004" @default.
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