Table 4 Correlation coefficient (r) between IPF score and magnitude, angle of displacement vectors.
From: CT-derived 3D-diaphragm motion in emphysema and IPF compared to normal subjects
Displacement | Reticular + Honeycombing | GGO | Total score | |||
|---|---|---|---|---|---|---|
Visual | AMFM | Visual | AMFM | Visual | AMFM | |
3D | − 0.101 (0.314) | − 0.157 (0.138) | − 0.213 (0.032)* | − 0.115 (0.282) | − 0.142 (0.156) | − 0.160 (0.132) |
Transverse | 0.024 (0.813) | − 0.040 (0.705) | 0.014 (0.885) | − 0.116 (0.277) | 0.025 (0.803) | − 0.075 (0.484) |
Apico-basal | − 0.114 (0.255) | − 0.208 (0.049)* | − 0.244 (0.014)* | − 0.190 (0.073) | − 0.161 (0.107) | − 0.227 (0.032)* |
Dorsal–ventral | − 0.085 (0.398) | − 0.198 (0.062) | − 0.098 (0.329) | − 0.151 (0.156) | − 0.100 (0.319) | − 0.204 (0.054) |
Angle (mean) | − 0.028 (0.780) | − 0.108 (0.310) | − 0.027 (0.787) | − 0.109 (0.308) | − 0.032 (0.751) | − 0.122 (0.254) |
Angle (SD) | − 0.056 (0.577) | − 0.033 (0.754) | − 0.056 (0.576) | − 0.089 (0.407) | − 0.064 (0.523) | − 0.059 (0.581) |
