Clinical use of organic near-infrared fluorescent contrast agents in image-guided oncologic procedures and its potential in veterinary oncology

2018 ◽  
Vol 183 (11) ◽  
pp. 354-354 ◽  
Author(s):  
Sophie Favril ◽  
Eline Abma ◽  
Francesco Blasi ◽  
Emmelie Stock ◽  
Nausikaa Devriendt ◽  
...  
Keyword(s):  
Fluorescence Imaging ◽  
Fluorescent Probes ◽  
Near Infrared ◽  
Sentinel Lymph Node Mapping ◽  
Cost Effective ◽  
Surgical Oncology ◽  
Great Promise ◽  
Lymph Node Mapping ◽  
Nir Light ◽  
Nir Fluorescence

One of the major challenges in surgical oncology is the intraoperative discrimination of tumoural versus healthy tissue. Until today, surgeons rely on visual inspection and palpation to define the tumoural margins during surgery and, unfortunately, for various cancer types, the local recurrence rate thus remains unacceptably high. Near-infrared (NIR) fluorescence imaging is an optical imaging technique that can provide real-time preoperative and intraoperative information after administration of a fluorescent probe that emits NIR light once exposed to a NIR light source. This technique is safe, cost-effective and technically easy. Several NIR fluorescent probes are currently studied for their ability to highlight neoplastic cells. In addition, NIR fluorescence imaging holds great promise for sentinel lymph node mapping. The aim of this manuscript is to provide a literature review of the current organic NIR fluorescent probes tested in the light of human oncology and to introduce fluorescence imaging as a valuable asset in veterinary oncology.

scholarly journals Optimization of sentinel lymph node mapping in bladder cancer using near-infrared fluorescence imaging

2014 ◽  
Vol 110 (7) ◽  
pp. 845-850 ◽  
Author(s):  
B.E. Schaafsma ◽  
F.P.R. Verbeek ◽  
H.W. Elzevier ◽  
Q.R.J.G. Tummers ◽  
J.R. van der Vorst ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Lymph Node ◽  
Sentinel Lymph Node ◽  
Fluorescence Imaging ◽  
Near Infrared ◽  
Sentinel Lymph Node Mapping ◽  
Near Infrared Fluorescence ◽  
Lymph Node Mapping ◽  
Near Infrared Fluorescence Imaging

scholarly journals Sentinel Lymph Node Biopsy in Vulvar Cancer Using Combined Radioactive and Fluorescence Guidance

2015 ◽  
Vol 25 (6) ◽  
pp. 1086-1093 ◽  
Author(s):  
Floris P.R. Verbeek ◽  
Quirijn R.J.G. Tummers ◽  
Daphne D.D. Rietbergen ◽  
Alexander A.W. Peters ◽  
Boudewijn E. Schaafsma ◽  
...  
Keyword(s):  
Lymph Node ◽  
Sentinel Lymph Node ◽  
Near Infrared ◽  
Vulvar Cancer ◽  
Intraoperative Imaging ◽  
Sentinel Lymph Node Mapping ◽  
Lymph Node Biopsy ◽  
Blue Dye ◽  
Lymph Node Mapping ◽  
Nir Fluorescence

ObjectiveNear-infrared (NIR) fluorescence imaging using indocyanine green (ICG) has recently been introduced to improve the sentinel lymph node (SLN) procedure. Several optical tracers have been successfully tested. However, the optimal tracer formulation is still unknown. This study evaluates the performance of ICG–technetium-99m (99mTc)–nanocolloid in relation to 2 most commonly used ICG-based formulas during SLN biopsy in vulvar cancer.Methods and MaterialsTwelve women who planned to undergo SLN biopsy for stage I vulvar cancer were prospectively included. Sentinel lymph node mapping was performed using the dual-modality radioactive and NIR fluorescence tracer ICG–99mTc-nanocolloid. All patients underwent combined SLN localization using NIR fluorescence and the (current) gold standard using blue dye and radioactive guidance.ResultsIn all 12 patients, at least 1 SLN was detected during surgery. A total of 21 lymph nodes (median 2; range, 1–3) were resected. Median time between skin incision and first SLN detection was 8 (range, 1–22) minutes. All resected SLNs were both radioactive and fluorescent, although only 13 (62%) of 21 SLNs stained blue. Median brightness of exposed SLNs, expressed as signal-to-background ratio, was 5.4 (range, 1.8–11.8). Lymph node metastases were found in 3 patients.ConclusionsNear-infrared fluorescence-guided SLN mapping is feasible and outperforms blue dye staining. Premixing ICG with 99mTc-nanocolloid provides real-time intraoperative imaging of the SN and seems to be the optimal tracer combination in terms of intraoperative detection rate of the SN (100%). Moreover, ICG–99mTc-nanocolloid allows the administration of a 5-times lower injected dose of ICG (compared with ICG and ICG absorbed to human serum albumin) and can be injected up to 20 hours before surgery.

Neutral merocyanine dyes: for in vivo NIR fluorescence imaging of amyloid-β plaques

2017 ◽  
Vol 53 (71) ◽  
pp. 9910-9913 ◽  
Author(s):  
Jin-wu Yan ◽  
Jia-ying Zhu ◽  
Kai-xiang Zhou ◽  
Jin-sheng Wang ◽  
Hui-ya Tan ◽  
...  
Keyword(s):  
Fluorescence Imaging ◽  
Fluorescent Probes ◽  
Near Infrared ◽  
Amyloid Β ◽  
Rational Engineering ◽  
Nir Fluorescence ◽  
Merocyanine Dyes ◽  
First Time

Two neutral merocyanine-based near-infrared fluorescent probes were for the first time developed through rational engineering of the classical cationic cyanine scaffold IR-780 for in vivo imaging of amyloid-β plaques.

Near-infrared fluorescence imaging with indocyanine green for quantification of changes in tissue perfusion following revascularization

Vascular ◽  
2021 ◽  
pp. 170853812110328
Author(s):  
Pim Van den Hoven ◽  
Floris S Weller ◽  
Merel Van De Bent ◽  
Lauren N Goncalves ◽  
Melissa Ruig ◽  
...  
Keyword(s):  
Indocyanine Green ◽  
Fluorescence Imaging ◽  
Fluorescence Intensity ◽  
Near Infrared ◽  
Tissue Perfusion ◽  
Control Group ◽  
Maximum Slope ◽  
Nir Fluorescence ◽  
Significant Difference ◽  
Revascularization Procedures

Objectives Current diagnostic modalities for patients with peripheral artery disease (PAD) mainly focus on the macrovascular level. For assessment of tissue perfusion, near-infrared (NIR) fluorescence imaging using indocyanine green (ICG) seems promising. In this prospective cohort study, ICG NIR fluorescence imaging was performed pre- and post-revascularization to assess changes in foot perfusion. Methods ICG NIR fluorescence imaging was performed in 36 patients with PAD pre- and post-intervention. After intravenous bolus injection of 0.1 mg/kg ICG, the camera registered the NIR fluorescence intensity over time on the dorsum of the feet for 15 min using the Quest Spectrum Platform®. Time-intensity curves were plotted for three regions of interest (ROI): (1) the dorsum of the foot, (2) the forefoot, and (3) the hallux. Time-intensity curves were normalized for maximum fluorescence intensity. Extracted parameters were the maximum slope, area under the curve (AUC) for the ingress, and the AUC for the egress. The non-treated contralateral leg was used as a control group. Results Successful revascularization was performed in 32 patients. There was a significant increase for the maximum slope and AUC egress in all three ROIs. The most significant difference was seen for the maximum slope in ROI 3 (3.7%/s to 6.6%/s, p < 0.001). In the control group, no significant differences were seen for the maximum slope and AUC egress in all ROIs. Conclusions This study shows the potential of ICG NIR fluorescence imaging in assessing the effect of revascularization procedures on foot perfusion. Future studies should focus on the use of this technique in predicting favorable outcome of revascularization procedures.

scholarly journals Near-Infrared Fluorescence Imaging and Photodynamic Therapy for Liver Tumors

2021 ◽  
Vol 11 ◽  
Author(s):  
Masaki Kaibori ◽  
Hisashi Kosaka ◽  
Kosuke Matsui ◽  
Morihiko Ishizaki ◽  
Hideyuki Matsushima ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Fluorescence Imaging ◽  
Near Infrared ◽  
Liver Tumors ◽  
Nir Fluorescence ◽  
Recent Developments ◽  
Fluorescent Agent ◽  
Stable Particles ◽  
And Function ◽  
Cancer Tissues

Surgery with fluorescence equipment has improved to treat the malignant viscera, including hepatobiliary and pancreatic neoplasms. In both open and minimally invasive surgeries, optical imaging using near-infrared (NIR) fluorescence is used to assess anatomy and function in real time. Here, we review a variety of publications related to clinical applications of NIR fluorescence imaging in liver surgery. We have developed a novel nanoparticle (indocyanine green lactosome) that is biocompatible and can be used for imaging cancer tissues and also as a drug delivery system. To date, stable particles are formed in blood and have an ~10–20 h half-life. Particles labeled with a NIR fluorescent agent have been applied to cancer tissues by the enhanced permeability and retention effect in animals. Furthermore, this article reviews recent developments in photodynamic therapy with NIR fluorescence imaging, which may contribute and accelerate the innovative treatments for liver tumors.

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