b) correlation with functional MRI outcomes
Functional MRI data were acquired using matrix pencil decomposition MRI
as previously described 18. Main outcomes are
fractional ventilation defect percentage (VDP) and relative perfusion
defect percentage (QDP) expressed as the impaired fraction relative to
whole lung volume. VDP and QDP were recalculated due to updated
post-processing 19. Correlations between VDP or QDP
and LCI were assessed by Spearman’s rank correlation20.