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Figure 2 Schematic representation of stent sizing and positioning. (A) The stent should stretch from the cranial aortoductal junction (point A), until halfway to the ductal constriction and the zenith of the ductal arch (point B). (B) When positioning and deploying the stent, the distal end of the stent should be aligned with point A without protrusion in the aorta; the proximal end of the stent will then protrude into the pulmonary trunk.
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