Two-dimensional sector scanner echocardiography in cyanotic congenital heart disease.

A wide angle (600) mechanical sector scanner producing two-dimensional echocardiograms (Shaw et al., 1976) has been used to assess great artery anatomy in infants and children with cyanotic con- genital heart disease. The wide angle swept by the single element of this scanner displays simul- taneously both ventricular outflow tracts. In making a preliminary report on this aspect of its clinical application we now describe and assess the results obtained in two groups of infants and children in whom the definitive diagnosis was made by cardiac catheterisation and angiocardiography.