RT Journal Article SR Electronic T1 Altered relaxation times in MRI indicate bronchopulmonary dysplasia JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP thoraxjnl-2018-212384 DO 10.1136/thoraxjnl-2018-212384 A1 Kai Förster A1 Birgit Ertl-Wagner A1 Harald Ehrhardt A1 Hannah Busen A1 Steffen Sass A1 Andreas Pomschar A1 Lutz Naehrlich A1 Andreas Schulze A1 Andreas W Flemmer A1 Christoph Hübener A1 Oliver Eickelberg A1 Fabian Theis A1 Olaf Dietrich A1 Anne Hilgendorff YR 2019 UL http://thorax.bmj.com/content/early/2019/04/30/thoraxjnl-2018-212384.abstract AB We developed a MRI protocol using transverse (T2) and longitudinal (T1) mapping sequences to characterise lung structural changes in preterm infants with bronchopulmonary dysplasia (BPD). We prospectively enrolled 61 infants to perform 3-Tesla MRI of the lung in quiet sleep. Statistical analysis was performed using logistic Group Lasso regression and logistic regression. Increased lung T2 relaxation time and decreased lung T1 relaxation time indicated BPD yielding an area under the curve (AUC) of 0.80. Results were confirmed in an independent study cohort (AUC 0.75) and mirrored by lung function testing, indicating the high potential for MRI in future BPD diagnostics.Trial registration DRKS00004600.