Step 4: visualization and reconstruction of the pulmonary valve in long-axis view.
Panel A: ICE catheter at the base of the right ventricle outflow tract (RVOT) with the beam oriented upwards. The most septal portion of PV in long axis view is visualized. At this level part of the RVOT, LPC, PA, RCC and LCC are displayed. Panel B: a gentle clockwise rotation allows to visualize both LPC and APC. Panel C : with further clockwise torsion the beam cuts the right pulmonary cusp “on edge, the visualization of the aorta indicates a posterior direction of the beam. During each phase of this step annular tags must be acquired.