Computed tomography scoring for local invasion in prone and supine positions compared with surgical findings
| Positive at operation | Negative at operation |
False positive on supine scan |
False positive on prone scan | p Value3-152 | |
| Aortic invasion | 13-150 | 38 | 10 | 3 | 0.04 |
| Pericardial invasion | 0 | 39 | 20 | 20 | ns |
| Airways invasion | 33-151 | 36 | 2 | 1 | ns |
↵3-150 One patient was found to have invasion of the aorta at the time of operation which had not been predicted by either prone or supine computed tomograms.
↵3-151 Three patients local airways invasion correctly predicted by the radiological signs in one case in the supine position and two cases in the prone position.
↵3-152 χ2 Test comparing false positive results of prone and supine computed tomograms.