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Figure 2 This patient underwent Cypher stent implantation in a right coronary stenosis; the final angiogram is shown in A. At follow-up (B) there was a focal angiographic aneurysm in the proximal right coronary (arrow). The final (post-implantation) IVUS is shown in C, and the follow-up IVUS is shown in D. Note the late stent malapposition most prominently indicated by the white asterisk. There has been an increase in external elastic membrane cross-sectional area (CSA) from 17.8 mm2 to 28.9 mm2 along with an increase in effective lumen CSA (intra-stent lumen CSA plus area of malapposition) from 8.8 mm2 to 16.8 mm2. The stent CSA (8.8 mm2) and the peri-stent plaque and media CSA (8.9 mm2) have not changed.
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