Distribution of intial proliferation in long lesions covered with multiple stents: insight from an intravascular ultrasound study

摘要

Angiographic studies show higher restenosis rates in long lesions covered with multiple stents. To understand this process, we compared serial[post-intervention and follow-up (FU, 6±3 months)]intravascular ultrasound(IVUS)studies in 155 various stents implanted into 65 native de novo lesions (> 20 mm). Lumen and stent areas(2 mm)were measured; plaque(stent-lumen)area, late lumen loss and tissue growth were calculated for the edges, bodys, and connection points (CP)of the stents.