Abstract
Optical molecular imaging using near-infrared fluorescence (NIRF) light is an emerging high-resolution imaging approach to image a wide range of molecular and cellular species in vivo. Imaging using NIR wavelengths (650–900 nm) enables deeper photon penetration into tissue and reduced tissue autofluorescence, resulting in higher sensitivity to detect exogenously administered NIR fluorophores (injectable molecular imaging agents). Greater imaging depth of several centimeters is further achievable in the NIR window as blood absorption is as an order of magnitude lower than in the visible range. Furthermore, as optical imaging is routinely performed in the cardiac catheterization laboratory (e.g., optical coherence tomography), intravascular NIRF offers a promising translational approach for clinical coronary and peripheral arterial imaging. To this point, the first human intravascular NIRF imaging study recently demonstrated the ability to detect NIR autofluorescence in patients with coronary atherosclerosis. This study provides a foundation for targeted intravascular NIRF molecular imaging studies in coronary patients. In this chapter, we detail system engineering, imaging agents and translational applications of intravascular NIRF molecular imaging.
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Acknowledgments
This work was supported by NIH R01 HL150538 and R01 HL137913 grants to F.A.J.
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Chowdhury, M.M. et al. (2022). Intravascular Fluorescence Molecular Imaging of Atherosclerosis. In: Ramji, D. (eds) Atherosclerosis. Methods in Molecular Biology, vol 2419. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-1924-7_52
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DOI: https://doi.org/10.1007/978-1-0716-1924-7_52
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