title: A composite three-dimensional echocardiographic technique for left ventricular volume estimation in children: comparison with angiography and established echographic methods.
abstract: A composite three-dimensional (3D) echographic left ventricular (LV) reconstruction to measure LV volumes was evaluated in 26 children. Four apical views, to minimize assumptions about LV shape, were used to obtain a "wire-cage" model of the LV in 3D. Numerical integration was used to make estimates of both end-diastolic and end-systolic volumes. Volume estimates obtained with echographic techniques and those obtained with the angiographic biplane method were compared. The echographic volume estimates were systematically smaller (p less than 0.005), and a consistent trend, though not significant, was observed indicating that this systematic error is less for the 3D method. One-way analysis of variance confirmed significant global geometric fluctuations. Hence, 3D reconstruction can be performed in a clinical setting, and the enhanced graphic representation of global LV geometry may contribute to improved patient management.
mesh_terms: D000293:Adolescent; D000792:Angiography; D002648:Child; D002675:Child, Preschool; D004452:Echocardiography / Q000379:methods*; D005260:Female; D006330:Heart Defects, Congenital / Q000175:diagnosis* / Q000503:physiopathology / Q000601:surgery; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D009200:Myocardial Contraction; D013318:Stroke Volume