From: Chest MRI to diagnose early diaphragmatic weakness in Pompe disease
 | FVC upright | FVC supine | Δ FVC | MIP | MEP |
---|---|---|---|---|---|
Thorax-related outcomes | |||||
Cranial-caudal ratio | 0.518*** | 0.680*** | −0.654*** | 0.435** | 0.187 |
Anterior–posterior ratio | 0.035 | 0.097 | −0.112 | −0.008 | 0.040 |
Lung area ratio | 0.473*** | 0.636*** | −0.610*** | 0.398** | 0.151 |
CC-AP ratio | 0.509*** | 0.643*** | −0.608*** | 0.403** | 0.161 |
Diaphragm-related outcomes | |||||
Diaphragm area ratio | −0.556*** | −0.588*** | 0.484*** | −0.355** | −0.293* |
Diaphragm height ratio | −0.538*** | −0.608*** | 0.552*** | −0.382** | −0.270 |
Anterior displacement | 0.089 | 0.201 | −0.234 | −0.065 | −0.042 |
Posterior displacement | 0.486*** | 0.650*** | −0.598*** | 0.322* | 0.021 |