Fig. 2.

Hp ¹²⁹Xe slice selective coronal MR images (in red) overlayed onto corresponding proton thoracic images from healthy volunteers and subjects with asthma, chronic obstructive pulmonary disease (COPD), cystic fibrosis (CF) and radiation-induced lung injury (RILI). Reprinted with permission from Shukla et al. Acad. Radiol., 2012; 19:944, © 2012 Elsevier. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)