Left parasternal short-axis scanning technique
Figure 5.6. Left parasternal short-axis scanning technique. The transducer is positioned near the left cranial border of the heart. Cranial-caudal yields the series of short axis (SAx) images. Variable angulation in the dorsal-ventral direction may be necessary as suggested by the figure. 1: Left parasternal short-axis (LPS SAx) view at the right ventricle (RV) inflow tract. The right coronary (RC), left coronary (LC), and non-coronary (NC) cusps of the aortic (Ao) valve may be visible. 2: LPS SAx view at the RV inflow-outflow tracts. Both the inflow and outflow tracts of the right heart may be visible with subtle angulation and twist adjustments. The RC, LC, and NC cusps of the Ao valve may be visible. 3: LPS SAx view at the pulmonary trunk (PT). Division of the PT into the right and left main pulmonary arteries is seen in the far field.
co-authored by Donald Brown, Hugues Gaillot and Suzanne Cunningham