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Figure 2 Cumulative frequency distribution curves of the minimal lumen diameter before the procedure (PRE), immediately after intervention (POST), and at six months follow-up (FU), in patients treated with balloon angioplasty (BA) and repeat stenting (ST). (A) "Per-segment" analysis. (B) "In-lesion" analysis. After the procedure the distribution curve in the stent group is shifted to the right (with the two analyses) indicating a larger acute gain. At follow-up the results of the stent group are better than those in the balloon group in the "in-lesion" analysis (B), but not in the "per-segment" analysis (A).