Tissue Doppler systolic velocity change during dobutamine stress echocardiography predicts contractile reserve and exercise tolerance in patients with heart failure
European Heart Journal – Cardiovascular Imaging, 05/29/2012
Ciampi Q et al. – In patients with HF, the rest–stress variation of mitral annulus systolic velocities during DSE predicts the presence of myocardial contractile reserve and exercise tolerance.



