Table 1. Summarized results of preoperative computed tomography (CT) in determining staging.
| Author | Year | Study type | Number of studies | Number of patients | Stage | Accuracy (%) | Sensitivity (%) | Specificity (%) |
|---|---|---|---|---|---|---|---|---|
| Chen (7) | 2007 | Prospective, observational | – | 55 | N (+/−) | 78.0 | – | – |
| Blackshaw (8) | 2008 | Retrospective | – | 44 | N (0, 1, 2) | – | 75.0 | 66.0 |
| Ahn (9) | 2009 | Retrospective | – | 434 | N (+/−) | 83.1 | – | – |
| Kwee (10) | 2009 | Review | 10 | – | N overall | – | 62.5–91.9 (pooled) | 50–87.9 (pooled) |
| Hwang (11) | 2010 | Retrospective | – | 227 | N 0–3 | 62.8 | – | – |
| Seevaratnam (12) | 2012 | Meta-analysis | 32 | – | N overall | 67.1 | 75.8 | 78.8 |
| Kagedan (13) | 2016 | Registry study | – | 2,414 (lymph node cohort n=450) | N (only CT based cN-negative) | 43.3 (overall negative predictive value) | – | – |
| Parry (14) | 2016 | Retrospective | – | 266 | N (+/−) | 71.0 | – | – |