Table 2 Summary of the quantitative emphysema measures and their physical units.
CT measure | Units | Mean | SD |
|---|---|---|---|
%LAA | % | 9.52 | 11.66 |
Mishima’s D | Unitless | 1.70 | 0.12 |
NJC | % | 7.10 | 10.05 |
ACS | mm\(^2\) | 21.35 | 19.75 |
NC | Rate per 100 cm\(^2\) of lung tissue | 17.10 | 12.76 |
%-Diffuse | % | 29.35 | 20.13 |
ACA | mm\(^2\) | 60.80 | 29.30 |
