Wilcoxon signed-rank test i-scan1 and i-scan2 compared with high-definition (HD+) bronchoscopy and blinded randomised evaluation compared with unblinded primary evaluation in randomised order
| SE (i-scan1) vs HD+ | SE+TE (i-scan2) vs HD+ | Blinded vs unblinded | ||||
| Z | P values | Z | P values | Z | P values | |
| Visual grade | 1.092 | 0.2747 | −0.031 | 0.9755 | −1.859 | 0.0631 |
| Vascular pattern | 2.105 | 0.0353 | −2.807 | 0.0050 | −1.443 | 0.1489 |
SE, surface enhancement; TE, tone enhancement.