TCT-11 Association Between Scaffold Under-Expansion and Late Lumen Loss after Bioresorbable Scaffold Implantation: IVUS and Angiographic Insights from the ABSORB Japan Trial

Methods In ABSORB Japan, volumetric IVUS was performed at post-procedure in 146 lesions (98 Absorb BVS: 48 EES). %Device Expansion was defined as a ratio of mean device area to mean reference lumen area at post-procedure. Serial QCA was performed to evaluate late lumen loss (LLL), defined as %change in in-segment minimum lumen diameter (MLD), from post-procedure to 3-year follow-up.