fig8

Figure 8. The use of a standard approach shown schematically by IVUS. (A) Following stent deployment and post-dilation, IVUS was performed using the automatic pullback recordings from distal part of the vessel to proximal; (B and D) Plaque burden (PB) was measured in a segment at the 5 mm proximal or distal to the stent edges. If the PB was > 50% or in the event of edge dissection, a stent was deployed; (C) at the lesion site, if minimum stent area (MSA) was < 5.4 mm² or < 90% of distal reference lumen area (DRLA), further post-dilation of the stent was performed using high-pressure balloon inflation sized to the distal EEM diameter. Repeat IVUS pullback was performed to investigate whether the optimal stent results, defined as MSA ≥ 5.4 mm² or ≥ 90% of DRLA at the lesion site and plaque burden < 50% at the stent edges with no edge dissection, were achieved.