This is what asthma looks like: Review of new and emerging functional imaging methods and results

In asthma, diffuse and homogeneously distributed airway abnormalities have been thought responsible for symptoms and disease worsening, despite evidence over six-decades ago of ventilation heterogeneity using multiple-breath gas-washout studies. Such ventilation heterogeneity could stem from heterogeneously distributed airway abnormalities and, recently, pulmonary imaging including nuclear medicine methods, x-ray computed tomography (CT) and …