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Accurate assessment of left ventricular function by determining left ventricular volumes and ejection fraction is important in evaluating the prognoses of patients with heart failure. Two-dimensional (2D) echocardiography suffers from low correlation with reference methods like ventriculography. Three-dimensionally (3D) assessed data have been proved to have better conformity. Endocardial border delineation remains a problem, however, especially in patients with suboptimal recordings. Few data exist on 3D-echocardiographic volumetry with ultrasound contrast agents (UCAs). We evaluated the second-generation UCA LK565 for its boundary-tracing capacities in freehand 3D echocardiography in a phase II clinical trial. Safety and efficacy of the novel contrast agent were also evaluated.

Freehand three-dimensional assessment of left ventricular volumes and ejection fraction with ultrasound contrast agent LK565