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Figure 3 Mechanism of Change in Lumen CSA During the Follow-Up Period
(A) BMS; (B) SES. Delta ( ) denotes change (follow-up minus post-procedure). (A) BMS: Changes of the lumen CSA are predominantly determined by changes in P&M CSA, which is positive in the majority of sites. Most likely this is due to neointimal growth. Clearly, remodeling (mostly negative) plays a small role in change of the lumen CSA. (B) SES: Change of the lumen CSA is mainly caused by remodeling after SES implantation, either negative (below x axis) or positive (above x axis). The P&M CSA remains virtually unchanged in most SM sites. Some SM sites demonstrate a clear reduction in P&M CSA, which may be due at least in part to resolution of thrombus behind the stent. Abbreviations as in Figure 2.
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