B-mode Speckle Tracking Echocardiography (STE) estimates the change in myocardial tissue length during a heartbeat. Commercial STE software use block-matching to track local speckle patterns and advect hand-drawn boundaries through these tracks to estimate length change. Strain is gaining adoption as a clinical metric for...
Echocardiogram Particle Image Velocimetry (echoPIV) is an emerging method for cardiac flow visualization. EchoPIV tracks acoustic-opaque bubbles introduced into the blood stream using block-matching methods. Despite increased interest, echoPIV is not routinely performed, as contrast enhancement is not clinically indicated unless initial image quality is...
Visualization and quantitation of multi-directional cardiovascular flow without the need for sedation or contrast is desirable across all practices of cardiology. Intraventricular flow mapping (iVFM) is one such method for multi-direction visualization. iVFM estimates the transverse flow from color Doppler ultrasound using the continuity equation....