Categorical 1H VOLVE Lung MRI Quantifies Ventilation Magnitude and Delay in Cystic Fibrosis and CFTR Modulator Response - Peggs, Zachary; Brooke, Jonathan; Ng, Christabella; Yule, Alexander; Prayle, Andrew; Barr, Helen; Bolton, Charlotte; Smyth, Alan; Hall, Ian; Gowland, Penny; Francis, Susan (Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition, 2026)