Ventilation defect percent in helium-3 magnetic resonance imaging as a biomarker of severe outcomes in asthma

DG Mummy, SJ Kruger, W Zha, RL Sorkness… - Journal of allergy and …, 2018 - jacionline.org
Spearman correlations between VDP and pulmonary function tests including FEV1 PP,
FEV1/forced vital capacity (FVC) PP, and residual volume/total lung capacity (RV/TLC) PP
are presented in Table E2 of this article's Online Repository at www. jacionline. org. VDP
was correlated with both FEV1 PP and FEV1/FVC PP in the full study population (r 5 20.32,
P 5. 001; r 5 20.54, P<. 001, respectively), as well as in the mild/moderate asthma subgroup
(r 5 20.33, P<. 01; r 5 20.49, P<. 001). In the severe asthma group, VDP was correlated with …