Abstract
Background - Little is known about causes of intimal hyperplasia (IH) after sirolimus-eluting stent (SES) implantation. Methods and Results - Intravascular ultrasound was performed in 24 lesions with intra-SES restenosis and a comparison group of 25 nonrestenotic SESs. To assess stent strut distribution, the maximum interstrut angle was measured with a protractor centered on the stent, and the visible struts were counted and normalized for the number of stent cells. In SES restenosis patients, minimum lumen site was compared with image slices 2.5, 5.0, 7.5, and 10.0 mm proximal and distal to this site. The minimum lumen site had a smaller IVUS lumen area at follow-up (2.7±0.9 versus 6.2±1.9 mm2; P2; P
Original language | English |
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Pages (from-to) | 3430-3434 |
Number of pages | 5 |
Journal | Circulation |
Volume | 110 |
Issue number | 22 |
DOIs | |
Publication status | Published - Nov 30 2004 |
Keywords
- Restenosis
- Stents
- Ultrasonics
ASJC Scopus subject areas
- Physiology
- Cardiology and Cardiovascular Medicine