Roelandt, J.R.T.C.

patient echocardiography study heart stress imaging artery dobutamine image disease ultrasound segment valve artery disease volume result function dobutamine stress echocardiography analysis measurement doppler velocity group aortic cardiol method value perfusion assessment figure infarction regurgitation plaque motion right catheter table circulation technique tissue echocardiographic contrast system event roelandt lumen surgery vessel stenosi atrial systolic pressure examination number intravascular heart failure myocardium detection difference ventricle abnormality viability transducer follow-up exercise structure evaluation death revascularisation comparison downloaded accuracy improvement intravascular ultrasound ejection fraction diameter failure blood information article