Power Doppler is a new imaging method for detecting microbubbles during myocardial contrast echocardiography (MCE) based on the registration of variance resulting from ultrasound-induced nonlinear bubble behavior. We tested the hypothesis that power Doppler imaging can be used to quantify coronary stenoses.
University of Pittsburgh School of Medicine, Cardiovascular Institute, 200 Lothrop St, S568 Scaife Hall, Pittsburgh, PA 15213, USA. villanuevafs@msx.upmc.ed
