Severe Pulmonary Arterial Hypertension: Comprehensive Evaluation by Magnetic Resonance Imaging

Figure 4

MRI images at end diastole and end systole. The images show markedly enlarged right ventricle (RV) and right article (RA) with leftward interventricular septal wall bowing (arrows). The RV is significantly trabeculated, especially at the apex. LV = left ventricle; LA = left atrium; SAX = short-axis.