Figure 7
Illustration of clinical evaluation in the standard of Van Praagh classification system. (a) Is a model of four so-called normal hearts-that is, hearts with atrioventricular and ventriculoarterial concordant connections. The vertical line above the box represents the position of the ventricular septum. Note that in situs inversus, the aortic origin lies to the left of pulmonary trunk origin. The red dotted line represents the location of ventriculoarterial connections. (b) Is a model of varieties of ventriculoarterial connection. Aortic origin in the transposition of the great arteries and the double outlet ventricles (DORV, DOLV) is indicated by D when it lies to the right of the pulmonary artery origin and L when it lies to the left. (c) Schematically show the great vessel configurations on axial cross-sectional images at the level of valves when in a normal position (left column) or inversion (right column) and in normal relation (bottom row) or transposition (top row). (d) Schematically show d-malposition (top) and l-malposition (bottom) of the great vessels.
