PREFUL MRI as a Biomarker of Single-Dose and Sustained Bronchodilator Response in COPD: Evidence from a Randomized Trial - Voskrebenzev, Andreas; Kaireit, Till; Klein, Marius; Kern, Agilo; Behrendt, Lea; Klimeš, Filip; Müller, Robin; Kayser, Thomas; Wacker, Frank; Vogel-Claussen, Jens; Hohlfeld, Jens (Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition, 2026)