Radiopacity of Coronary Stents, an In Vitro Comparative Study.
Cardiovasc Eng Technol
; 11(6): 719-724, 2020 12.
Article
en En
| MEDLINE
| ID: mdl-33025369
PURPOSE: Interventional cardiology devices and especially stents are constantly evolving. A good radiopacity is essential to properly position the stent and to reduce the risk of complications during percutaneous coronary intervention (PCI). We wanted to assess the radiopacity of coronary stents. METHODS: 9 stents were evaluated. Stents were deployed in a silicon bifurcation model and several pulsed fluoroscopy acquisitions (7.5 and 15 pulses/s) of each device were performed in a catheterization laboratory. Quantitative radiopacity assessment was performed using a radiopacity visual scale and qualitative radiopacity assessment was performed by showing the images to three experienced operators, single-blind. RESULTS: Our study showed statistically significant differences between stents regarding radiopacity assessed in a quantitative analysis (p < 0.000001) or a qualitative analysis (p < 0.000001), whether the acquisitions were made in 7.5 or 15 pulses/s. Resolute Onyx and Synergy were the most radio-opaque in both qualitative and qualitative analysis. Moreover, there was a statistically significant correlation between the radiopacity of stents, their strut thickness (p < 0.0001) and the presence of platinum in their metallic alloy (p < 0.0001). CONCLUSION: This study highlighted significant differences in the radiopacity of coronary stents deployed in a bench test model. The strut thickness and the presence of platinum increased the radiopacity.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Angioplastia Coronaria con Balón
/
Stents
Tipo de estudio:
Clinical_trials
/
Qualitative_research
Límite:
Humans
Idioma:
En
Revista:
Cardiovasc Eng Technol
Año:
2020
Tipo del documento:
Article
País de afiliación:
Francia
Pais de publicación:
Estados Unidos