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Feasibility and Safety of the Novel Vivolight Frequency Domain Optical Coherence Tomography System: A Multicenter Study.
Journal of Invasive Cardiology 2021 April 9
OBJECTIVE: The study sought to assess the effectiveness and safety of the novel P60 Vivolight frequency-domain optical coherence tomography (OCT) system (Shenzhen Vivolight Medical Device & Technology).
METHODS: A total of 90 patients were enrolled from 3 institutions. The pullbacks were performed with both the P60 Vivolight OCT system and the Ilumien Optis OCT system (Abbott Vascular). The primary endpoint was the clear stent length (CSL). Device safety was assessed by the record of serious procedure-related or postprocedure adverse events. The secondary endpoints were the average lumen area of stent, clear image length (CIL), system stability, and imaging catheter operability.
RESULTS: The mean relative errors of CSL were 3.30% (95% confidence interval [CI], -0.71 to 7.31) in the full analysis set (FAS) and 0.83% (95% CI, -1.79 to 3.45) in the per-protocol set (PPS). The mean relative errors of the average lumen area of stent were 2.20% (95% CI, 0.70 to 3.80) in the FAS and 1.55% (95% CI, 0.30 to 2.80) in the PPS. No difference was observed in the percentage of obtaining >24 mm of CIL (93.18% in the P60 Vivolight group vs 95.45% in the Ilumien Optis group; P=.48). There were no serious procedure-related or postprocedure adverse events.
CONCLUSIONS: The feasibility and safety of the novel Vivolight OCT system is equivalent to that of the Ilumien Optis OCT system.
METHODS: A total of 90 patients were enrolled from 3 institutions. The pullbacks were performed with both the P60 Vivolight OCT system and the Ilumien Optis OCT system (Abbott Vascular). The primary endpoint was the clear stent length (CSL). Device safety was assessed by the record of serious procedure-related or postprocedure adverse events. The secondary endpoints were the average lumen area of stent, clear image length (CIL), system stability, and imaging catheter operability.
RESULTS: The mean relative errors of CSL were 3.30% (95% confidence interval [CI], -0.71 to 7.31) in the full analysis set (FAS) and 0.83% (95% CI, -1.79 to 3.45) in the per-protocol set (PPS). The mean relative errors of the average lumen area of stent were 2.20% (95% CI, 0.70 to 3.80) in the FAS and 1.55% (95% CI, 0.30 to 2.80) in the PPS. No difference was observed in the percentage of obtaining >24 mm of CIL (93.18% in the P60 Vivolight group vs 95.45% in the Ilumien Optis group; P=.48). There were no serious procedure-related or postprocedure adverse events.
CONCLUSIONS: The feasibility and safety of the novel Vivolight OCT system is equivalent to that of the Ilumien Optis OCT system.
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