Quantification of regional left ventricular wall motion by three-dimensional echocardiography in children with single left ventricle

Objective To explore the value of three-dimensional echocardiography(3DE)for quantitative assessment of regional left ventricular wall motion in single left ventricle.Methods 102 subjects were divided into two groups.51 healthy volunteers and 51 patients with single left ventricle were enrolled in this study.3DE data was acquired with the IE33 system then analyzed by Q-lab software.The average excursion and average ball excursion of every segments of left ventricular were acquired by 3DE.Results The excursion of basal inferolateral,basal anterolateral,mid inferolateral,mid anterolateral,apical inferior,apical lateral and apex in patients with single left ventricle was significantly smaller than the excursion of basal anterior in healthy volunteers(P0.05).There were no significant difference in excursion at basal anterior,basal inferoseptal,basal lateral,basal inferolateral,mid anterior,mid anteroseptal,mid inferoseptal,mid lateral and apical anterior between healthy volunteers and patients with single left ventricle(P0.05).There were no significant difference in ball excursion of every segments between healthy volunteers and patients with single left ventricle(P0.05).Conclusions Ventricular wall motion in patients with FSV can be quantified by 3DE.