Tissue harmonic imaging improves the quality of images in adults with poor
acoustic windows, but its utility in children has yet to be evaluated. The
use of fundamental and harmonic imaging were compared in 70 children with p
oor echocardiographic windows. Scores were higher for harmonic in compariso
n to fundamental imaging for all views. Harmonic imaging improves the visua
lization of cardiac structures over fundamental imaging in children with po
or echocardiographic windows.