Evaluation of left ventricular volume using automatic border detection in children: A comparison with conventional off‐line echocardiographic quantification

80 consecutive pediatric patients with clear images obtained by two-dimensional echocardiography

Automatic border detection system for determination of left ventricular volume (using Hewlett-Packard Sonos 2500 with a 3.5 or 5.5 Mhz phased array transducer in the apical four-chamber imaging plane)

Conventional off-line manual tracing (apical four-chamber and two-chamber imaging planes using bi-plane Simpson method) and classical Pombo M-mode echocardiography

Correlation of left ventricular end-diastolic and end-systolic volumes and ejection fraction between methodssurrogate