129Xe and 1H MRI lung function assessment of PAH associated with systemic sclerosis - Saunders, Laura; Collier, Guilhem; Hughes, Paul; Strickland, Scarlett; Almsaaid, Muad; Burney, Rebecca; Smith, Ian; Smith, Laurie; Norquay, Graham; Pilgrim-Morris, Jemima; Marshall, Helen; Biancardi, Alberto; et al. (Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition, 2026)