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Study design. Rats were evaluated when right ventricular (RV) failure was present 28 days after pulmonary trunk banding (PTB)/sham surgery and 21 days after monocrotaline (MCT) injection. The evaluation protocol for each rat was magnetic resonance imaging (MRI) on day 1 and echocardiography (ECHO) and invasive pressure measurement (IPM) on day 2. TAPSE: tricuspid annular plane systolic excursion.
