Assessment of bioabsorbable scaffolds by multislice computed tomography angiography.

Even with recent advances in computed tomography (CT) imaging of coronary stents, blooming is still an important limitation in the assessment of stents. Recently, the introduction of bioabsorbable radiolucent scaffolds has allowed almost unrestricted imaging of the stent lumen. A 68-year-old man with a history of coronary artery disease was admitted with non-ST-elevation myocardial infarction. Coronary angiography revealed 95% stenosis of the proximal left anterior descending artery (Figure 1A1). The patient underwent percutaneous coronary intervention with implantation of a 3.5 mm×18 mm bioabsorbable everolimus-eluting poly(lactic acid) scaffold (Abbott Vascular, Santa Clara, CA) (Figure 1A2). As part of a prospective study, 64-slice CT angiography (SOMATOM Sensation 64 scanner, Siemens, Forchheim, Germany) was performed at the first month follow-up. Radiopaque indicators (arrows) at