1
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Chiti LE, Park B, d'Orchymont F, Holland JP, Nolff MC. Impact of Surgical Lights on the Performance of Fluorescence-Guided Surgery Systems: A Pilot Study. Animals (Basel) 2023; 13:2363. [PMID: 37508142 PMCID: PMC10376740 DOI: 10.3390/ani13142363] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/16/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Fluorescence-guided surgery can aid in the intraoperative visualization of target tissues, with promising applications in human and veterinary surgical oncology. The aim of this study was to evaluate the performances of two fluoresce camera systems, IC-FlowTM and VisionsenseTM VS3 Iridum, for the detection of two non-targeted (ICG and IRDye-800) and two targeted fluorophores (AngiostampTM and FAP-Cyan) under different room light conditions, including ambient light, new generation LED, and halogen artificial light sources, which are commonly used in operating theaters. Six dilutions of the fluorophores were imaged in phantom kits using the two camera systems. The limit of detection (LOD) and mean signal-to-background ratio (mSBR) were determined. The highest values of mSBR and a lower LOD were obtained in dark conditions for both systems. Under room lights, the capabilities decreased, but the mSBR remained greater than 3 (=clearly detectable signal). LOD and mSBR worsened under surgical lights for both camera systems, with a greater impact from halogen bulbs on VisionsenseTM VS3 Iridium and of the LED lights on IC-Flow due to a contribution of these lights in the near-infrared spectrum. When considering implementing FGS into the clinical routine, surgeons should cautiously evaluate the spectral contribution of the lights in the operating theater.
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Affiliation(s)
- Lavinia E Chiti
- Klinik für Kleintierchirurgie, Vetsuisse-Fakultät, University of Zurich, Wintherturerstrasse 260, CH-8057 Zurich, Switzerland
| | - Brian Park
- Klinik für Kleintierchirurgie, Vetsuisse-Fakultät, University of Zurich, Wintherturerstrasse 260, CH-8057 Zurich, Switzerland
| | - Faustine d'Orchymont
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Jason P Holland
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Mirja C Nolff
- Klinik für Kleintierchirurgie, Vetsuisse-Fakultät, University of Zurich, Wintherturerstrasse 260, CH-8057 Zurich, Switzerland
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2
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Out-of-Phase Imaging after Optical Modulation (OPIOM) for Multiplexed Fluorescence Imaging Under Adverse Optical Conditions. Methods Mol Biol 2021; 2350:191-227. [PMID: 34331287 DOI: 10.1007/978-1-0716-1593-5_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Fluorescence imaging has become a powerful tool for observations in biology. Yet it has also encountered limitations to overcome optical interferences of ambient light, autofluorescence, and spectrally interfering fluorophores. In this account, we first examine the current approaches which address these limitations. Then we more specifically report on Out-of-Phase Imaging after Optical Modulation (OPIOM), which has proved attractive for highly selective multiplexed fluorescence imaging even under adverse optical conditions. After exposing the OPIOM principle, we detail the protocols for successful OPIOM implementation.
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3
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Zhu B, Sevick-Muraca EM, Nguyen RD, Shah MN. Cap-Based Transcranial Optical Tomography in an Awake Infant. IEEE TRANSACTIONS ON MEDICAL IMAGING 2020; 39:3300-3308. [PMID: 32356740 DOI: 10.1109/tmi.2020.2990823] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Although Blood Oxygenation Level Dependent (BOLD) functional MRI (fMRI) is widely used to examine brain function in adults, the need for general anesthesia limits its practical utility in infants and small children. Functional Near-Infrared Spectroscopy - Diffuse Optical Tomography (fNIRS-DOT) imaging promises to be an alternative brain network imaging technique. Yet current versions of continuous-wave fNIRS-DOT systems are restricted to the cortical surface measurements and do not probe deep structures that are frequently injured especially in premature infants. Herein we report a transcranial near infrared optical imaging system, called Cap-based Transcranial Optical Tomography (CTOT) able to image whole brain hemodynamic activity with 3 seconds of data acquisition time. We show the system is capable of whole brain oxygenation mapping in an awake child, and that tomographically reconstructed static CTOT-derived oxy- and deoxygenated blood volumes are spatially correlated with the time-averaged BOLD fMRI volumes. By removing time bottlenecks in the current system, dynamic CTOT mapping should be possible, which would then enable evaluation of functional connectivity in awake infants.
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4
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Kelemen Z, Zhang R, Gissot L, Chouket R, Bellec Y, Croquette V, Jullien L, Faure JD, Le Saux T. Dynamic Contrast for Plant Phenotyping. ACS OMEGA 2020; 5:15105-15114. [PMID: 32637783 PMCID: PMC7331089 DOI: 10.1021/acsomega.0c00957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 06/02/2020] [Indexed: 06/11/2023]
Abstract
Noninvasiveness, minimal handling, and immediate response are favorable features of fluorescence readout for high-throughput phenotyping of labeled plants.Yet, remote fluorescence imaging may suffer from an autofluorescent background and artificial or natural ambient light. In this work, the latter limitations are overcome by adopting reversibly photoswitchable fluorescent proteins (RSFPs) as labels and Speed OPIOM (out-of-phase imaging after optical modulation), a fluorescence imaging protocol exploiting dynamic contrast. Speed OPIOM can efficiently distinguish the RSFP signal from autofluorescence and other spectrally interfering fluorescent reporters like GFP. It can quantitatively assess gene expressions, even when they are weak. It is as quantitative, sensitive, and robust in dark and bright light conditions. Eventually, it can be used to nondestructively record abiotic stress responses like water or iron limitations in real time at the level of individual plants and even of specific organs. Such Speed OPIOM validation could find numerous applications to identify plant lines in selection programs, design plants as environmental sensors, or ecologically monitor transgenic plants in the environment.
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Affiliation(s)
- Zsolt Kelemen
- Université
Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin, F-78000 Versailles, France
| | - Ruikang Zhang
- PASTEUR,
Département de chimie, École
normale supérieure, PSL University, SorbonneUniversité,
CNRS, 24, rue Lhomond, 75005 Paris, France
| | - Lionel Gissot
- Université
Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin, F-78000 Versailles, France
| | - Raja Chouket
- PASTEUR,
Département de chimie, École
normale supérieure, PSL University, SorbonneUniversité,
CNRS, 24, rue Lhomond, 75005 Paris, France
| | - Yannick Bellec
- Université
Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin, F-78000 Versailles, France
| | - Vincent Croquette
- Laboratoire
de Physique Statistique, École normale
supérieure, PSL Research University, Université de Paris,
Sorbonne Université, CNRS, 75005 Paris, France
- Institut
de biologie de l’École normale supérieure (IBENS), École normale supérieure, CNRS, INSERM,
PSL Research University, 75005 Paris, France
| | - Ludovic Jullien
- PASTEUR,
Département de chimie, École
normale supérieure, PSL University, SorbonneUniversité,
CNRS, 24, rue Lhomond, 75005 Paris, France
| | - Jean-Denis Faure
- Université
Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin, F-78000 Versailles, France
| | - Thomas Le Saux
- PASTEUR,
Département de chimie, École
normale supérieure, PSL University, SorbonneUniversité,
CNRS, 24, rue Lhomond, 75005 Paris, France
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5
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Abstract
The present chapter summarizes progress with optical methods that go beyond human vision. The focus is on two particular technologies: fluorescence molecular imaging and optoacoustic (photoacoustic) imaging. The rationale for the selection of these two methods is that in contrast to optical microscopy techniques, both fluorescence and optoacoustic imaging can achieve large fields of view, i.e., spanning several centimeters in two or three dimensions. Such fields of views relate better to human vision and can visualize large parts of tissue, a necessary premise for clinical detection. Conversely, optical microscopy methods only scan millimeter-sized dimensions or smaller. With such operational capacity, optical microscopy methods need to be guided by another visualization technique in order to scan a very specific area in tissue and typically only provide superficial measurements, i.e., information from depths that are of the order of 0.05-1 mm. This practice has generally limited their clinical applicability to some niche applications, such as optical coherence tomography of the retina. On the other hand, fluorescence molecular imaging and optoacoustic imaging emerge as more global optical imaging methods with wide applications in surgery, endoscopy, and non-invasive clinical imaging, as summarized in the following. The current progress in this field is based on a volume of recent review and other literature that highlights key advances achieved in technology and biomedical applications. Context and figures from references from the authors of this chapter have been used here, as it reflects our general view of the current status of the field.
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Affiliation(s)
- Daniel Razansky
- Faculty of Medicine and Institute of Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland
- Department of Information Technology and Electrical Engineering, Institute for Biomedical Engineering, ETH Zurich, Zurich, Switzerland
| | - Vasilis Ntziachristos
- Technical University of Munich, Ismaningerstr. 22, 81675, Munich, Germany.
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany.
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6
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Pogue BW, Rosenthal EL, Achilefu S, van Dam GM. Perspective review of what is needed for molecular-specific fluorescence-guided surgery. JOURNAL OF BIOMEDICAL OPTICS 2018; 23:1-9. [PMID: 30291698 PMCID: PMC6210787 DOI: 10.1117/1.jbo.23.10.100601] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 09/07/2018] [Indexed: 05/21/2023]
Abstract
Molecular image-guided surgery has the potential for translating the tools of molecular pathology to real-time guidance in surgery. As a whole, there are incredibly positive indicators of growth, including the first United States Food and Drug Administration clearance of an enzyme-biosynthetic-activated probe for surgery guidance, and a growing number of companies producing agents and imaging systems. The strengths and opportunities must be continued but are hampered by important weaknesses and threats within the field. A key issue to solve is the inability of macroscopic imaging tools to resolve microscopic biological disease heterogeneity and the limitations in microscopic systems matching surgery workflow. A related issue is that parsing out true molecular-specific uptake from simple-enhanced permeability and retention is hard and requires extensive pathologic analysis or multiple in vivo tests, comparing fluorescence accumulation with standard histopathology and immunohistochemistry. A related concern in the field is the over-reliance on a finite number of chosen preclinical models, leading to early clinical translation when the probe might not be optimized for high intertumor variation or intratumor heterogeneity. The ultimate potential may require multiple probes, as are used in molecular pathology, and a combination with ultrahigh-resolution imaging and image recognition systems, which capture the data at a finer granularity than is possible by the surgeon. Alternatively, one might choose a more generalized approach by developing the tracer based on generic hallmarks of cancer to create a more "one-size-fits-all" concept, similar to metabolic aberrations as exploited in fluorodeoxyglucose - positron emission tomography (FDG-PET) (i.e., Warburg effect) or tumor acidity. Finally, methods to approach the problem of production cost minimization and regulatory approvals in a manner consistent with the potential revenue of the field will be important. In this area, some solid steps have been demonstrated in the use of fluorescent labeling commercial antibodies and separately in microdosing studies with small molecules.
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Affiliation(s)
- Brian W. Pogue
- Dartmouth College, Thayer School of Engineering and Department of Surgery, Geisel School of Medicine, Hanover, New Hampshire, United States
- Address all correspondence to: Brian W. Pogue, E-mail:
| | - Eben L. Rosenthal
- Stanford University School of Medicine, Department of Otolaryngology and Head and Neck Surgery, Stanford, California, United States
| | - Samuel Achilefu
- Washington University in St. Louis, Department of Radiology, St. Louis, Missouri, United States
| | - Gooitzen M. van Dam
- University Medical Center Groningen, Department of Surgery, Nuclear Medicine and Molecular Imaging, Groningen, The Netherlands
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7
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Zhang R, Chouket R, Plamont MA, Kelemen Z, Espagne A, Tebo AG, Gautier A, Gissot L, Faure JD, Jullien L, Croquette V, Le Saux T. Macroscale fluorescence imaging against autofluorescence under ambient light. LIGHT, SCIENCE & APPLICATIONS 2018; 7:97. [PMID: 30510693 PMCID: PMC6261969 DOI: 10.1038/s41377-018-0098-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 10/27/2018] [Accepted: 10/27/2018] [Indexed: 05/07/2023]
Abstract
Macroscale fluorescence imaging is increasingly used to observe biological samples. However, it may suffer from spectral interferences that originate from ambient light or autofluorescence of the sample or its support. In this manuscript, we built a simple and inexpensive fluorescence macroscope, which has been used to evaluate the performance of Speed OPIOM (Out of Phase Imaging after Optical Modulation), which is a reference-free dynamic contrast protocol, to selectively image reversibly photoswitchable fluorophores as labels against detrimental autofluorescence and ambient light. By tuning the intensity and radial frequency of the modulated illumination to the Speed OPIOM resonance and adopting a phase-sensitive detection scheme that ensures noise rejection, we enhanced the sensitivity and the signal-to-noise ratio for fluorescence detection in blot assays by factors of 50 and 10, respectively, over direct fluorescence observation under constant illumination. Then, we overcame the strong autofluorescence of growth media that are currently used in microbiology and realized multiplexed fluorescence observation of colonies of spectrally similar fluorescent bacteria with a unique configuration of excitation and emission wavelengths. Finally, we easily discriminated fluorescent labels from the autofluorescent and reflective background in labeled leaves, even under the interference of incident light at intensities that are comparable to sunlight. The proposed approach is expected to find multiple applications, from biological assays to outdoor observations, in fluorescence macroimaging.
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Affiliation(s)
- Ruikang Zhang
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Raja Chouket
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Marie-Aude Plamont
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Zsolt Kelemen
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Saclay Plant Science (SPS), Université Paris-Saclay, Versailles, France
| | - Agathe Espagne
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Alison G. Tebo
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Arnaud Gautier
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Lionel Gissot
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Saclay Plant Science (SPS), Université Paris-Saclay, Versailles, France
| | - Jean-Denis Faure
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Saclay Plant Science (SPS), Université Paris-Saclay, Versailles, France
| | - Ludovic Jullien
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Vincent Croquette
- Laboratoire de Physique Statistique, École Normale Supérieure, PSL Research University, Université Paris Diderot Sorbonne Paris-Cité, Sorbonne Université, CNRS, 75005 Paris, France
- Institut de biologie de l’École normale supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, PSL Research University, 75005 Paris, France
| | - Thomas Le Saux
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
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8
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Sexton KJ, Zhao Y, Davis SC, Jiang S, Pogue BW. Optimization of fluorescent imaging in the operating room through pulsed acquisition and gating to ambient background cycling. BIOMEDICAL OPTICS EXPRESS 2017; 8:2635-2648. [PMID: 28663895 PMCID: PMC5480502 DOI: 10.1364/boe.8.002635] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 04/15/2017] [Accepted: 04/18/2017] [Indexed: 05/03/2023]
Abstract
The design of fluorescence imaging instruments for surgical guidance is rapidly evolving, and a key issue is to efficiently capture signals with high ambient room lighting. Here, we introduce a novel time-gated approach to fluorescence imaging synchronizing acquisition to the 120 Hz light of the room, with pulsed LED excitation and gated ICCD detection. It is shown that under bright ambient room light this technique allows for the detection of physiologically relevant nanomolar fluorophore concentrations, and in particular reduces the light fluctuations present from the room lights, making low concentration measurements more reliable. This is particularly relevant for the light bands near 700nm that are more dominated by ambient lights.
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9
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Klein JS, Mitchell GS, Cherry SR. Quantitative assessment of Cerenkov luminescence for radioguided brain tumor resection surgery. Phys Med Biol 2017; 62:4183-4201. [PMID: 28287074 DOI: 10.1088/1361-6560/aa6641] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Cerenkov luminescence imaging (CLI) is a developing imaging modality that detects radiolabeled molecules via visible light emitted during the radioactive decay process. We used a Monte Carlo based computer simulation to quantitatively investigate CLI compared to direct detection of the ionizing radiation itself as an intraoperative imaging tool for assessment of brain tumor margins. Our brain tumor model consisted of a 1 mm spherical tumor remnant embedded up to 5 mm in depth below the surface of normal brain tissue. Tumor to background contrast ranging from 2:1 to 10:1 were considered. We quantified all decay signals (e±, gamma photon, Cerenkov photons) reaching the brain volume surface. CLI proved to be the most sensitive method for detecting the tumor volume in both imaging and non-imaging strategies as assessed by contrast-to-noise ratio and by receiver operating characteristic output of a channelized Hotelling observer.
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Affiliation(s)
- Justin S Klein
- Department of Biomedical Engineering, University of California, Davis, CA, United States of America
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10
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Near-Infrared Fluorescence-Enhanced Optical Tomography. BIOMED RESEARCH INTERNATIONAL 2016; 2016:5040814. [PMID: 27803924 PMCID: PMC5075630 DOI: 10.1155/2016/5040814] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 08/25/2016] [Indexed: 11/18/2022]
Abstract
Fluorescence-enhanced optical imaging using near-infrared (NIR) light developed for in vivo molecular targeting and reporting of cancer provides promising opportunities for diagnostic imaging. The current state of the art of NIR fluorescence-enhanced optical tomography is reviewed in the context of the principle of fluorescence, the different measurement schemes employed, and the mathematical tools established to tomographically reconstruct the fluorescence optical properties in various tissue domains. Finally, we discuss the recent advances in forward modeling and distributed memory parallel computation to provide robust, accurate, and fast fluorescence-enhanced optical tomography.
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11
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DSouza AV, Lin H, Henderson ER, Samkoe KS, Pogue BW. Review of fluorescence guided surgery systems: identification of key performance capabilities beyond indocyanine green imaging. JOURNAL OF BIOMEDICAL OPTICS 2016; 21:80901. [PMID: 27533438 PMCID: PMC4985715 DOI: 10.1117/1.jbo.21.8.080901] [Citation(s) in RCA: 257] [Impact Index Per Article: 32.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 07/19/2016] [Indexed: 05/04/2023]
Abstract
There is growing interest in using fluorescence imaging instruments to guide surgery, and the leading options for open-field imaging are reviewed here. While the clinical fluorescence-guided surgery (FGS) field has been focused predominantly on indocyanine green (ICG) imaging, there is accelerated development of more specific molecular tracers. These agents should help advance new indications for which FGS presents a paradigm shift in how molecular information is provided for resection decisions. There has been a steady growth in commercially marketed FGS systems, each with their own differentiated performance characteristics and specifications. A set of desirable criteria is presented to guide the evaluation of instruments, including: (i) real-time overlay of white-light and fluorescence images, (ii) operation within ambient room lighting, (iii) nanomolar-level sensitivity, (iv) quantitative capabilities, (v) simultaneous multiple fluorophore imaging, and (vi) ergonomic utility for open surgery. In this review, United States Food and Drug Administration 510(k) cleared commercial systems and some leading premarket FGS research systems were evaluated to illustrate the continual increase in this performance feature base. Generally, the systems designed for ICG-only imaging have sufficient sensitivity to ICG, but a fraction of the other desired features listed above, with both lower sensitivity and dynamic range. In comparison, the emerging research systems targeted for use with molecular agents have unique capabilities that will be essential for successful clinical imaging studies with low-concentration agents or where superior rejection of ambient light is needed. There is no perfect imaging system, but the feature differences among them are important differentiators in their utility, as outlined in the data and tables here.
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Affiliation(s)
- Alisha V. DSouza
- Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire 03755, United States
- Address all correspondence to: Alisha V. DSouza, E-mail: ; Brian W. Pogue, E-mail:
| | - Huiyun Lin
- Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire 03755, United States
- Fujian Normal University, MOE Key Laboratory of OptoElectronic Science and Technology for Medicine, Fujian Provincial Key Laboratory for Photonics Technology, Fujian 350007, China
| | - Eric R. Henderson
- Dartmouth-Hitchcock Medical Center, Department of Orthopaedics, Lebanon, New Hampshire 03756, United States
| | - Kimberley S. Samkoe
- Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire 03755, United States
- Dartmouth College, Geisel School of Medicine, Department of Surgery, Hanover, New Hampshire 03755, United States
| | - Brian W. Pogue
- Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire 03755, United States
- Dartmouth College, Geisel School of Medicine, Department of Surgery, Hanover, New Hampshire 03755, United States
- Address all correspondence to: Alisha V. DSouza, E-mail: ; Brian W. Pogue, E-mail:
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12
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Chen Z, Zhu N, Pacheco S, Wang X, Liang R. Single camera imaging system for color and near-infrared fluorescence image guided surgery. BIOMEDICAL OPTICS EXPRESS 2014; 5:2791-7. [PMID: 25136502 PMCID: PMC4133006 DOI: 10.1364/boe.5.002791] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 07/17/2014] [Accepted: 07/19/2014] [Indexed: 05/05/2023]
Abstract
Near-infrared (NIR) fluorescence imaging systems have been developed for image guided surgery in recent years. However, current systems are typically bulky and work only when surgical light in the operating room (OR) is off. We propose a single camera imaging system that is capable of capturing NIR fluorescence and color images under normal surgical lighting illumination. Using a new RGB-NIR sensor and synchronized NIR excitation illumination, we have demonstrated that the system can acquire both color information and fluorescence signal with high sensitivity under normal surgical lighting illumination. The experimental results show that ICG sample with concentration of 0.13 μM can be detected when the excitation irradiance is 3.92 mW/cm(2) at an exposure time of 10 ms.
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Affiliation(s)
- Zhenyue Chen
- College of Optical Sciences, University of Arizona, Tucson, Arizona 85721, USA
- Beijing Institute of Technology, Key Laboratory of Photoelectronic Imaging Technology and System of Ministry of Education of China, School of Optoelectronics, Beijing 100081, China
| | - Nan Zhu
- College of Optical Sciences, University of Arizona, Tucson, Arizona 85721, USA
| | - Shaun Pacheco
- College of Optical Sciences, University of Arizona, Tucson, Arizona 85721, USA
| | - Xia Wang
- Beijing Institute of Technology, Key Laboratory of Photoelectronic Imaging Technology and System of Ministry of Education of China, School of Optoelectronics, Beijing 100081, China
| | - Rongguang Liang
- College of Optical Sciences, University of Arizona, Tucson, Arizona 85721, USA
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13
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Zhu N, Mondal S, Gao S, Achilefu S, Gruev V, Liang R. Engineering light-emitting diode surgical light for near-infrared fluorescence image-guided surgical systems. JOURNAL OF BIOMEDICAL OPTICS 2014; 19:076018. [PMID: 25057962 PMCID: PMC4109625 DOI: 10.1117/1.jbo.19.7.076018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 06/26/2014] [Accepted: 07/02/2014] [Indexed: 05/29/2023]
Abstract
The near-infrared (NIR) fluorescence signal in the 700 to 900 nm from molecular probes used in fluorescence image-guided surgery (FIGS) is usually weak compared to the NIR component from white light-emitting diode surgical light, which is typically switched off during FIGS to enhance the molecular fluorescence contrast of the image. We propose a simple solution to this critical issue in FIGS by removing NIR light from surgical light with a low cost commercial 3M cool mirror film 330.
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Affiliation(s)
- Nan Zhu
- University of Arizona, College of Optical Science, 1630 E. University Boulevard, Tucson, Arizona 85721, United States
| | - Suman Mondal
- Washington University, Department of Radiology, St. Louis, Missouri 63110, United States
| | - Shengkui Gao
- Washington University, Department of Computer Science and Engineering, St. Louis, Missouri 63110, United States
| | - Samuel Achilefu
- Washington University, Department of Radiology, St. Louis, Missouri 63110, United States
| | - Viktor Gruev
- Washington University, Department of Computer Science and Engineering, St. Louis, Missouri 63110, United States
| | - Rongguang Liang
- University of Arizona, College of Optical Science, 1630 E. University Boulevard, Tucson, Arizona 85721, United States
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