| BMI | Body mass index |
| PFT | Pulmonary function test |
| EX | Expiration |
| IN | Inspiration |
| FEV1 | Forced expiratory volume in one second |
| FVC | Forced vital capacity |
| HD | Humidifier disinfectant |
| HDLI | HD-associated lung injuries |
| CT | Computed tomography |
| EFA | Exploratory factor analysis |
| IRB | Institutional review boards |
| ROI | Regions of interest |
| CAE | Convolutional autoencoder |
| FC | Feature constructor |
| AWV% | Airway tree to lung volume ratio |
| RV/TLC | Residual volume to total lung capacity ratio |
| CFPD | Computational fluid and particle dynamics |
| LES | Large eddy simulation |
| F0 | Factor 0 |
| F1 | Factor 1 |
| F2 | Factor 2 |
| F3 | Factor 3 |
| F4 | Factor 4 |
| F5 | Factor 5 |
| C0 | Cluster 0 |
| C1 | Cluster 1 |
| C2 | Cluster 2 |
| C3 | Cluster 3 |
| C4 | Cluster 4 |
| C5 | Cluster 5 |
| Variables below measured at different locations are denoted by {Variable}_{Location}. | |
| Variable | |
| Dh | Hydraulic luminal diameter |
| LAARV% | Low attenuation area percentage at residual volume |
| LAATLC% | Low attenuation area percentage at total lung capacity |
| fSAD% | Functional small airway disease percentage |
| J | Determinant of the Jacobian matrix |
| Location | |
| LUL | Left upper lobe |
| LLL | Left lower lobe |
| RUL | Right upper lobe |
| RML | Right middle lobe |
| RLL | Right lower lobe |
| Total | Total lung |
| sLUL | Sub-lobar subset airways at LUL |
| sLLL | Sub-lobar subset airways at LLL |
| sRUL | Sub-lobar subset airways at RUL |
| sRML | Sub-lobar subset airways at RML |
| sRLL | Sub-lobar subset airways at RLL |
| lLUL | Lobar airway at LUL |
| lLLL | Lobar airway at LLL |
| Lobar airway at RUL | Lobar airway at RUL |
| Lobar airway at RML | Lobar airway at RML |
| Lobar airway at RLL | Lobar airway at RLL |