Intravascular ultrasound assessment of the magnitude and mechanism of coronary artery and lumen tapering

Clinical and angiographic follow-up after single long GFX coronary stent implantation

“…Although the difference was not significant, the restenosis rate after long-stent implantation in LAD (38.8%) was higher than that in RCA (25.0%), in agreement with many previous studies showing more restenosis in LAD compared to RCA after balloon angioplasty [25] and after stenting [23,24]. Intravascular ultrasound studies have shown greater vessel tapering in the LAD than in the RCA [26], which implies the LAD is more frequently associated with small distal RD with the inherent potential risk of restenosis after long-stent implantation.…”

Impact of final stent dimensions on long-term results following sirolimus-eluting stent implantation

“…Injury from the stent deployment balloon in the adjacent area and postprocedural crosssectional narrowing of the contiguous stent margins tend to trigger stent edge restenosis (21). Natural lumen tapering at the stent margins may cause stent edge restenosis (22). Furthermore, limited diffusion of drug in the stent margins may also trigger stent edge restenosis.…”

Clinical application and image interpretation in intracoronary ultrasound

“…These measurements are larger than the angiographic measurements of corresponding segments in apparently normal coronary arteries, especially in older patients, but were confirmed by ultrasonic measurements in arteries with no plaque [46] . The left anterior descending and left circumflex arteries taper along their length, but the calibre of the right coronary artery remains constant up to the crux cordis [47] .…”