Table 2.
The number of quantitative CT imaging datasets according to imaging centres: each dataset contains one inspiration and one expiration scan
| Project | Imaging centre (abbreviation) | Number of datasets |
| SubPopulations and InteRmediate Outcome Measures In COPD Study (eight sites) | 284 | |
| Columbia University (CU) | 61 | |
| Johns Hopkins University (JH) | 24 | |
| University of California at Los Angeles (LA, LV) | 36, 15 (two sites) |
|
| University of Michigan (MU) | 39 | |
| University of California at San Francisco (SF) | 31 | |
| University of Utah (UT) | 59 | |
| Wake Forest University (WF) | 19 | |
| Severe Asthma Research Program (three sites) | 100 | |
| University of Pittsburgh (PIT) | 44 | |
| University of Wisconsin (WIS) | 38 | |
| Washington University in Saint Louis (WSL) | 18 | |