FEV1 | FVC | FEV1/FVC | ||
---|---|---|---|---|
Multi-detector CT parameters | Extent of emphysema (− 950 HU | |||
Right lung LD index% | r value | − 0.317* | − 0.161 | − 0.420** |
p value | 0.025 | 0.264 | 0.002 | |
Right upper lung LD index% | r value | − 0.434** | − 0.284* | − 0.563** |
p value | 0.002 | 0.045 | < 0.001 | |
Right lower lung LD index% | r value | − 0.344* | − 0.186 | − 0.478** |
p value | 0.015 | 0.197 | < 0.001 | |
Left lung LD index% | r value | − 0.313* | − 0.272 | − 0.413** |
p value | 0.027 | 0.056 | 0.003 | |
Left upper lung LD index% | r value | − 0.493** | − .324* | − .620** |
p value | < 0.001 | 0.022 | < 0.001 | |
Left lower lung LD index% | r value | − 0.448** | − .260 | 0.295* |
p value | 0.001 | .068 | 0.037 | |
Both lung LD index% | r value | − 0.313* | − 0.272 | − 0.413** |
p value | 0.027 | 0.056 | 0.003 | |
Both upper lung LD index% | r value | − 0.460** | − .300* | − .591** |
p value | 0.001 | 0.034 | < 0.001 | |
Both lower lung LD index% | r value | − 0.397** | − 0.219 | − .543** |
p value | 0.004 | 0.126 | < 0.001 |