Poster + Paper
27 November 2023 Full assessment of in-stent restenosis and associated inflammation based on the integrated OCT-NIRF-US intravascular system
Author Affiliations +
Conference Poster
Abstract
In-stent restenosis (ISR) and its associated inflammation remains a significant concern for long-term patient outcomes following stent implantation in percutaneous coronary intervention (PCI). The problem is intricately associated with endothelial injury, excessive endothelialization, hyperproliferation of smooth muscle cells, and the infiltration of inflammatory molecules. However, commonly employed imaging techniques encounter challenges in simultaneously acquiring both vascular structural information and functional data related to inflammation. Here, we presented a novel Tri modality intravascular imaging system capable of simultaneous optical coherence tomography (OCT), near-infrared fluorescence (NIRF), ultrasound (US) imaging, and fabricated the OCT-NIRF-US catheter which outer diameter is 0.75 mm, aiming to provide a more comprehensive diagnostic tool for ISR and its associated inflammation. Experiments were conducted on atherosclerotic rabbits implanted with a scaffold, divided into two groups (n=3 each group) for assessment on the first and twenty-eighth day, respectively. Primary results demonstrated that the integrated OCT-NIRF-US intravascular system enables complementary structural imaging and functional imaging of inflammation. The system presents the potential to offer a more accurate assessment, providing with valuable insights into the ISR processing and assisting in the development of more precise clinical strategies.
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Zhuoquan Chen, Bing Wang, Ruiming Kong, Yuting Song, Dongqing Shang, Zeping Gao, and Teng Ma "Full assessment of in-stent restenosis and associated inflammation based on the integrated OCT-NIRF-US intravascular system", Proc. SPIE 12770, Optics in Health Care and Biomedical Optics XIII, 127702Q (27 November 2023); https://doi.org/10.1117/12.2687443
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KEYWORDS
Fluorescence

Inflammation

Optical coherence tomography

Imaging systems

System integration

Aorta

Fluorescence intensity

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