Thoracic Imaging    Hyperpolarized Helium 3 MRI in Mild-to-Moderate Asthma: Prediction of Postbronchodilator Reversibility   In study participants with mild-to-moderate asthma, ventilation defect volume at MRI predicted reversibility of postbronchodilator forced expiratory volume in 1 second (FEV1) 6 years later.        Rachel L. Eddy, Sarah Svenningsen...Grace Parraga

Editorial: Insights on Asthma by Using Hyperpolarized Helium 3 MRI Jadranka Stojanovska