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Pancreas-Targeted NIR Fluorophores for Dual-Channel Image-Guided Abdominal Surgery

Wada, Hideyuki
Hyun, Hoon
Vargas, Christina
Gravier, Julien
Park, GwangLi
Gioux, Sylvain
Frangioni, John V.
Henary, Maged
Choi, Hak Soo
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Abstract

Objective: Pancreas-related complications are some of the most serious ones in abdominal surgery. The goal of this study was to develop and validate novel near-infrared (NIR) fluorophores that would enable real-time pancreas imaging to avoid the intraoperative pancreatic injury. Design: After initial screening of a large NIR fluorophore library, the performance of 3 selected pancreas-targeted 700 nm NIR fluorophores, T700-H, T700-F, and MB, were quantified in mice, rats, and pigs. Dose ranging using 25 and 100 nmol, and 2.5 μmol of T700-F, and its imaging kinetics over a 4 h period were tested in each species. Three different 800 nm NIR fluorophores were employed for dual-channel FLARE™ imaging in pigs: 2 μmol of ZW800-1 for vessels and kidney, 1 μmol of ZW800-3C for lymph nodes, and 2 μmol of ESNF31 for adrenal glands. Results: T700-F demonstrated the highest signal to background ratio (SBR), with peak SBR at 4 h postinjection in mice. In pigs, T700-F produced an SBR ≥ 2 against muscle, spleen, and lymph nodes for up to 8 h after a single intravenous injection. The combination of T700-F with each 800 nm NIR fluorophore provided simultaneous dual-channel intraoperative imaging of pancreas with surrounding organs in real time. Conclusion: Pancreas-targeted NIR fluorophores combined with the FLARE dual-channel imaging system enable the real-time intraoperative pancreas imaging which helps surgeons perform safer and more curative abdominal surgeries.

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Originally Published in: Theranostics, 5 (1), 1-11. doi: http://dx.doi.org/10.7150/thno.10259
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Date
2015-01-01
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Keywords
Pancreas-related complications, Postoperative pancreatic fistula, Intraoperative pancreatic injury, Image-guided surgery, Near-Infrared fluorescence.
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Wada H, Hyun H, Vargas C, Gravier J, Park G, Gioux S, Frangioni JV, Henary M, Choi HS. Pancreas-Targeted NIR Fluorophores for Dual-Channel Image-Guided Abdominal Surgery. Theranostics 2015; 5(1):1-11. doi:http://dx.doi.org/10.7150/thno.10259.
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