Carotid artery stenting (CAS) is one of the treatments for carotid stenosis; however, it associated with risk postoperative embolism due to in-stent plaque protrusion. CASPER Rx (Terumo, Co.) stent expected prevent protrusion because double-layered structure. Double-layer segment required be deployed over during placement; real-time understanding position difficult. Percutaneous ultrasound exam...

ncomplete stent apposition (ISA), also known as stent alapposition, is defined most simplistically as the absence f contact between stent struts and the vessel wall not verlying a side branch. Incomplete stent apposition can ccur at the time of stent implantation—acute ISA—which ight either resolve or persist at follow-up (late-persistent SA). Patients without ISA at the time of stent implantai...

Very late stent thrombosis occurs in patients with bare metal stent implantation, although the annual incidence is much lower than that after drug-eluting stent implantation. In-stent neoatherosclerosis with ruptured plaques and thin-cap fibroatheromas has been observed in bare metal stents. Atherosclerotic plaques harvested from patients with very late stent thrombosis and those with acute cor...

INTRODUCTION Application of computed tomography for monitoring intracranial stents is limited because of stent-related artifacts. Our purpose was to evaluate the effect of gemstone spectral imaging on the intracranial stent and stent lumen. MATERIALS AND METHODS In vitro, we scanned Enterprise stent phantom and a stent-cheese complex using the gemstone spectral imaging protocol. Follow-up gem...

BACKGROUND Stent underexpansion is the most powerful predictor of long-term stent patency and clinical outcome. The purpose of this study was to evaluate the incidence and predictors of stent underexpansion despite adjunctive post-dilatation with non-compliant balloon. METHODS After elective coronary stent implantation and adjunctive post-dilatation with non-compliant balloon and optimal angi...

Stent fracture is a complication following implantation of drug eluting stents and is recognized as one of the risk factors for in-stent restenosis. We present the first case of successfully managing a stent fracture and subsequent migration of the fractured stent into the ascending aorta that occurred during repeat revascularization for in-stent restenosis of an ostium of saphenous vein graft ...

OBJECTIVES The purpose of this study was to assess whether the newer stent delivery systems provide a stented lumen cross-sectional area (CSA) that is equal to the delivery balloon nominal dimensions. BACKGROUND First generation stents were often not adequately expanded with their delivery system and frequently required higher pressure or a larger balloon after deployment. Newer stents were d...