Table 4. Rate of positive lymph nodes and EUS and CT accuracy.
T stage | N-positive rate | EUS | CT | |||||
---|---|---|---|---|---|---|---|---|
% | No. patients | Sensitivity (%) | Specificity (%) | Sensitivity (%) | Specificity (%) | |||
T1 | 23 | 20/88 | 0 | 98 | 47 | 85 | ||
T2 | 43 | 9/21 | 14 | 100 | 50 | 78 | ||
T3 | 71 | 24/34 | 44 | 70 | 53 | 44 | ||
T4 | 97 | 29/30 | 45 | 100 | 48 | 100 | ||
Overall | 47 | 82/173 | 29 | 95 | 49 | 79 |
EUS, endoscopic ultrasonography; CT, computed tomography.