The effects of drug-eluting stent polymer on measurement of strut thickness by optical coherence tomography: in-vitro comparison with bare-metal stent.
BACKGROUND
Although measurement of stent strut by optical coherence tomography (OCT) is important as an index for evaluating incomplete stent apposition, the effects of drug-eluting stents (DES) polymer on it are unknown.


RESULTS
DES and bare-metal stents (BMS) as platforms of DES were implanted in an artificial artery. Thickness of stent strut, defined as a distance from inner surface of the strut to the adjacent surface of the tube, and thickness of high-signal band were measured by OCT. Each measurement of DES was significantly larger comparing with BMS.


CONCLUSIONS
This in-vitro study demonstrates that DES polymer may influence OCT measurement for the stent strut.
Mizuno
Masayuki
M
Takano
Masamichi
M
Mizuno
Kyoichi
K
D054855:Drug-Eluting Stents / Q000592:standards*; D004867:Equipment Design / Q000592:standards; D008670:Metals / Q000592:standards*; D011108:Polymers / Q000592:standards; D011143:Polyvinyl Chloride / Q000592:standards*; D015607:Stents / Q000592:standards; D041623:Tomography, Optical Coherence / Q000379:methods*
D008670:Metals; D011108:Polymers; D011143:Polyvinyl Chloride