Fig. 1

Diagram of selected patients that underwent combined CPET/CMR for evaluation of dyspnea. A total of 53 enrolled of which 34 completed screening and underwent testing. CPET – cardiopulmonary exercise testing, CT - computed tomography, CMR – cardiovascular magnetic resonance, HIV - human immunodeficiency virus, MMRC - Modified Medical Research Council, PFTs - pulmonary function testing