Table 1.
Comparison of volumetric measures between healthy lung masks from lungct R package and VIDA Diagnostics. Results are presented as mean (95% CI). P-values are from a Wilcoxon Signed Rank test due to the relatively small (N=62) sample of paired, skewed data. R. Diff stands for the relative difference in measurements from lungct segmentations as compared to that of VIDA.
| Measure | lungct | VIDA | P-value | R. Diff (%) |
|---|---|---|---|---|
| Right | ||||
| Volume (cm3) | 3008 (2845, 3171) | 3026 (2863, 3189) | 0.041 | −0.58 |
| Surface Area (cm2) | 1542 (1486, 1597) | 1547 (1491, 1603) | 0.046 | −0.34 |
| Length (cm) | 23.56 (23.02, 24.10) | 23.55 (23.01, 24.09) | 0.795 | 0.05 |
| Depth (cm) | 17.98 (17.61, 18.35) | 17.99 (17.62, 18.36) | 0.736 | −0.06 |
| Width (cm) | 11.99 (11.72, 12.25) | 12.00 (11.73, 12.27) | 0.362 | −0.14 |
| Left | ||||
| Volume (cm3) | 2672 (2530, 2815) | 2689 (2546, 2831) | 0.033 | −0.62 |
| Surface Area (cm2) | 1466 (1415, 1517) | 1480 (1429, 1531) | 0.000 | −0.97 |
| Length (cm) | 24.40 (23.83, 24.97) | 24.41 (23.84, 24.99) | 0.758 | −0.06 |
| Depth (cm) | 17.74 (17.37, 18.12) | 17.75 (17.38, 18.13) | 0.705 | −0.06 |
| Width (cm) | 10.65 (10.44, 10.87) | 10.67 (10.46, 10.89) | 0.108 | −0.21 |