Figure 1

Short-axis images (top panels) and short-axis tagged images (bottom panels), at the time of peak right ventricular (RV) shortening in a patient with chronic thromboembolic pulmonary hypertension before and after pulmonary endarterectomy (PEA). Leftward ventricular septal bowing, as present before PEA, recovers 6 months after PEA (white arrows). CMR = cardiovascular magnetic resonance. RV = right ventricle, LV = left ventricle.