Upper GI 2016
N Staging - MDCT
•CT - high specificity, but low sensitivity •Based on size criteria (short axis): ≥6mm perigastric ≥ 8mm extra perigastric ≥10mm mediastinum
No of Regional Nodes
Accuracy of N staging Oesophageal Cancer
Stage
68%*
N1
≤2
N2
3-6
67% †
Gastric Cancer
N3
≥7
* Davies, A. R., D. A. Deans, et al. (2006). Dis Esophagus 19 (6): 496-503 †Hur, J., M. S. Park, et al. (2006). J Comput Assist Tomogr 30 (3): 372-7.
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