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Chong SH, Markel VA, Parthasarathy AB, Ong YH, Abramson K, Moscatelli FA, Yodh AG. Algorithms and instrumentation for rapid spatial frequency domain fluorescence diffuse optical imaging. JOURNAL OF BIOMEDICAL OPTICS 2022; 27:116002. [PMID: 36348511 PMCID: PMC9641268 DOI: 10.1117/1.jbo.27.11.116002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
SIGNIFICANCE Rapid estimation of the depth and margins of fluorescence targets buried below the tissue surface could improve upon current image-guided surgery techniques for tumor resection. AIM We describe algorithms and instrumentation that permit rapid estimation of the depth and transverse margins of fluorescence target(s) in turbid media; the work aims to introduce, experimentally demonstrate, and characterize the methodology. APPROACH Spatial frequency domain fluorescence diffuse optical tomography (SFD-FDOT) technique is adapted for rapid and computationally inexpensive estimation of fluorophore target depth and lateral margins. The algorithm utilizes the variation of diffuse fluorescence intensity with respect to spatial-modulation-frequency to compute target depth. The lateral margins are determined via analytical inversion of the data using depth information obtained from the first step. We characterize method performance using fluorescent contrast targets embedded in tissue-simulating phantoms. RESULTS Single and multiple targets with significant lateral size were imaged at varying depths as deep as 1 cm. Phantom data analysis showed good depth-sensitivity, and the reconstructed transverse margins were mostly within ∼30 % error from true margins. CONCLUSIONS The study suggests that the rapid SFD-FDOT approach could be useful in resection surgery and, more broadly, as a first step in more rigorous SFD-FDOT reconstructions. The experiments permit evaluation of current limitations.
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Affiliation(s)
- Sang Hoon Chong
- University of Pennsylvania, Department of Physics and Astronomy, Philadelphia, Pennsylvania, United States
| | - Vadim A. Markel
- University of Pennsylvania, Department of Radiology, Philadelphia, Pennsylvania, United States
| | - Ashwin B. Parthasarathy
- University of South Florida, Department of Electrical Engineering, Tampa, Florida, United States
| | - Yi Hong Ong
- University of Pennsylvania, Department of Physics and Astronomy, Philadelphia, Pennsylvania, United States
| | - Kenneth Abramson
- University of Pennsylvania, Department of Physics and Astronomy, Philadelphia, Pennsylvania, United States
| | | | - Arjun G. Yodh
- University of Pennsylvania, Department of Physics and Astronomy, Philadelphia, Pennsylvania, United States
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van Beurden F, van Willigen DM, Vojnovic B, van Oosterom MN, Brouwer OR, der Poel HGV, Kobayashi H, van Leeuwen FWB, Buckle T. Multi-Wavelength Fluorescence in Image-Guided Surgery, Clinical Feasibility and Future Perspectives. Mol Imaging 2020; 19:1536012120962333. [PMID: 33125289 PMCID: PMC7607779 DOI: 10.1177/1536012120962333] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
With the rise of fluorescence-guided surgery, it has become evident that different types of fluorescence signals can provide value in the surgical setting. Hereby a different range of targets have been pursued in a great variety of surgical indications. One of the future challenges lies in combining complementary fluorescent readouts during one and the same surgical procedure, so-called multi-wavelength fluorescence guidance. In this review we summarize the current clinical state-of-the-art in multi-wavelength fluorescence guidance, basic technical concepts, possible future extensions of existing clinical indications and impact that the technology can bring to clinical care.
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Affiliation(s)
- Florian van Beurden
- Interventional Molecular Imaging Laboratory, Department of Radiology, 4501Leiden University Medical Center, Leiden, The Netherlands.,Department of Urology, 1228The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Danny M van Willigen
- Interventional Molecular Imaging Laboratory, Department of Radiology, 4501Leiden University Medical Center, Leiden, The Netherlands
| | - Borivoj Vojnovic
- Department of Oncology, Cancer Research UK/MRC Oxford Institute for Radiation Oncology, 6396University of Oxford, Oxford, United Kingdom
| | - Matthias N van Oosterom
- Interventional Molecular Imaging Laboratory, Department of Radiology, 4501Leiden University Medical Center, Leiden, The Netherlands.,Department of Urology, 1228The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Oscar R Brouwer
- Interventional Molecular Imaging Laboratory, Department of Radiology, 4501Leiden University Medical Center, Leiden, The Netherlands.,Department of Urology, 1228The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Henk G van der Poel
- Department of Urology, 1228The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Hisataka Kobayashi
- Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, 2511National Institutes of Health, Bethesda, MD, USA
| | - Fijs W B van Leeuwen
- Interventional Molecular Imaging Laboratory, Department of Radiology, 4501Leiden University Medical Center, Leiden, The Netherlands.,Department of Urology, 1228The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands.,Orsi Academy, Melle, Belgium
| | - Tessa Buckle
- Interventional Molecular Imaging Laboratory, Department of Radiology, 4501Leiden University Medical Center, Leiden, The Netherlands.,Department of Urology, 1228The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
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Multispectral Depth-Resolved Fluorescence Lifetime Spectroscopy Using SPAD Array Detectors and Fiber Probes. SENSORS 2019; 19:s19122678. [PMID: 31200569 PMCID: PMC6631026 DOI: 10.3390/s19122678] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 06/10/2019] [Accepted: 06/12/2019] [Indexed: 01/29/2023]
Abstract
Single Photon Avalanche Diode (SPAD) arrays are increasingly exploited and have demonstrated potential in biochemical and biomedical research, both for imaging and single-point spectroscopy applications. In this study, we explore the application of SPADs together with fiber-optic-based delivery and collection geometry to realize fast and simultaneous single-point time-, spectral-, and depth-resolved fluorescence measurements at 375 nm excitation light. Spectral information is encoded across the columns of the array through grating-based dispersion, while depth information is encoded across the rows thanks to a linear arrangement of probe collecting fibers. The initial characterization and validation were realized against layered fluorescent agarose-based phantoms. To verify the practicality and feasibility of this approach in biological specimens, we measured the fluorescence signature of formalin-fixed rabbit aorta samples derived from an animal model of atherosclerosis. The initial results demonstrate that this detection configuration can report fluorescence spectral and lifetime contrast originating at different depths within the specimens. We believe that our optical scheme, based on SPAD array detectors and fiber-optic probes, constitute a powerful and versatile approach for the deployment of multidimensional fluorescence spectroscopy in clinical applications where information from deeper tissue layers is important for diagnosis.
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Wei L, Roberts DW, Sanai N, Liu JTC. Visualization technologies for 5-ALA-based fluorescence-guided surgeries. J Neurooncol 2018; 141:495-505. [PMID: 30554344 DOI: 10.1007/s11060-018-03077-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 12/10/2018] [Indexed: 01/27/2023]
Abstract
INTRODUCTION 5-ALA-based fluorescence-guided surgery has been shown to be a safe and effective method to improve intraoperative visualization and resection of malignant gliomas. However, it remains ineffective in guiding the resection of lower-grade, non-enhancing, and deep-seated tumors, mainly because these tumors do not produce detectable fluorescence with conventional visualization technologies, namely, wide-field (WF) surgical microscopy. METHODS We describe some of the main factors that limit the sensitivity and accuracy of conventional WF surgical microscopy, and then provide a survey of commercial and research prototypes being developed to address these challenges, along with their principles, advantages and disadvantages, as well as the current status of clinical translation for each technology. We also provide a neurosurgical perspective on how these visualization technologies might best be implemented for guiding glioma surgeries in the future. RESULTS Detection of PpIX expression in low-grade gliomas and at the infiltrative margins of all gliomas has been achieved with high-sensitivity probe-based visualization techniques. Deep-tissue PpIX imaging of up to 5 mm has also been achieved using red-light illumination techniques. Spectroscopic approaches have enabled more accurate quantification of PpIX expression. CONCLUSION Advancements in visualization technologies have extended the sensitivity and accuracy of conventional WF surgical microscopy. These technologies will continue to be refined to further improve the extent of resection in glioma patients using 5-ALA-induced fluorescence.
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Affiliation(s)
- Linpeng Wei
- Department of Mechanical Engineering, University of Washington, Seattle, WA, 98195, USA.
| | - David W Roberts
- Section of Neurosurgery, Dartmouth-Hitchcock Medical Center, Lebanon, NH, 03756, USA
- Norris Cotton Cancer Center, Dartmouth-Hitchcock Medical Center, Lebanon, NH, 03756, USA
- Thayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA
- Geisel School of Medicine, Dartmouth College, Hanover, NH, 03755, USA
| | - Nader Sanai
- Department of Neurological Surgery, Barrow Neurological Institute, Phoenix, AZ, 85013, USA
| | - Jonathan T C Liu
- Department of Mechanical Engineering, University of Washington, Seattle, WA, 98195, USA
- Department of Pathology, University of Washington, Seattle, WA, 98195, USA
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Roberts DW, Olson JD, Evans LT, Kolste KK, Kanick SC, Fan X, Bravo JJ, Wilson BC, Leblond F, Marois M, Paulsen KD. Red-light excitation of protoporphyrin IX fluorescence for subsurface tumor detection. J Neurosurg 2018; 128:1690-1697. [PMID: 28777025 PMCID: PMC5797501 DOI: 10.3171/2017.1.jns162061] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
OBJECTIVE The objective of this study was to detect 5-aminolevulinic acid (ALA)-induced tumor fluorescence from glioma below the surface of the surgical field by using red-light illumination. METHODS To overcome the shallow tissue penetration of blue light, which maximally excites the ALA-induced fluorophore protoporphyrin IX (PpIX) but is also strongly absorbed by hemoglobin and oxyhemoglobin, a system was developed to illuminate the surgical field with red light (620-640 nm) matching a secondary, smaller absorption peak of PpIX and detecting the fluorescence emission through a 650-nm longpass filter. This wide-field spectroscopic imaging system was used in conjunction with conventional blue-light fluorescence for comparison in 29 patients undergoing craniotomy for resection of high-grade glioma, low-grade glioma, meningioma, or metastasis. RESULTS Although, as expected, red-light excitation is less sensitive to PpIX in exposed tumor, it did reveal tumor at a depth up to 5 mm below the resection bed in 22 of 24 patients who also exhibited PpIX fluorescence under blue-light excitation during the course of surgery. CONCLUSIONS Red-light excitation of tumor-associated PpIX fluorescence below the surface of the surgical field can be achieved intraoperatively and enables detection of subsurface tumor that is not visualized under conventional blue-light excitation. Clinical trial registration no.: NCT02191488 (clinicaltrials.gov).
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Affiliation(s)
- David W. Roberts
- Section of Neurosurgery, Dartmouth-Hitchcock Medical Center, Lebanon
- Geisel School of Medicine, Dartmouth College, Hanover, New Hampshire
- Norris Cotton Cancer Center, Dartmouth-Hitchcock Medical Center, Lebanon
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire
| | - Jonathan D. Olson
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire
| | - Linton T. Evans
- Section of Neurosurgery, Dartmouth-Hitchcock Medical Center, Lebanon
| | - Kolbein K. Kolste
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire
| | - Stephen C. Kanick
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire
| | - Xiaoyao Fan
- Section of Neurosurgery, Dartmouth-Hitchcock Medical Center, Lebanon
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire
| | - Jaime J. Bravo
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire
| | - Brian C. Wilson
- Princess Margaret Cancer Centre/University Health Network and Department of Medical Biophysics, University of Toronto, Ontario
| | - Frederic Leblond
- Department of Engineering Physics, Polytechnique Montreal, Quebec
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal, Quebec, Canada
| | - Mikael Marois
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire
| | - Keith D. Paulsen
- Section of Neurosurgery, Dartmouth-Hitchcock Medical Center, Lebanon
- Norris Cotton Cancer Center, Dartmouth-Hitchcock Medical Center, Lebanon
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire
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Wirth D, Kolste K, Kanick S, Roberts DW, Leblond F, Paulsen KD. Fluorescence depth estimation from wide-field optical imaging data for guiding brain tumor resection: a multi-inclusion phantom study. BIOMEDICAL OPTICS EXPRESS 2017; 8:3656-3670. [PMID: 28856042 PMCID: PMC5560832 DOI: 10.1364/boe.8.003656] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 06/17/2017] [Accepted: 07/01/2017] [Indexed: 05/08/2023]
Abstract
Studies have shown that fluorescent agents demarcate tumor from surrounding brain tissue and offer intraoperative guidance during resection. However, visualization of fluorescence signal from tumor below the surgical surface or through the appearance of blood in the surgical field is challenging. We have previously described red light imaging techniques for estimating fluorescent depths in turbid media. In this study, we evaluate these methods over a broader range of fluorophore concentrations, and investigate the ability to resolve multiple fluorescent emissions in the same plane or at different depths along the axis of imaging. A tungsten halogen lamp is used as a broadband white light source for reflectance imaging. Fluorescence from Alexa Fluor 647 is excited with a 635 nm diode laser. Reflectance and fluorescence spectral data are gathered between 670 and 720 nm with the use of a liquid crystal tunable filter and recorded on a sCMOS camera. Results show that two fluorescent emissions can be resolved within 2 mm if they are in the same plane or within 3 mm if they are at different depths along the axis of imaging up to 6 mm below the surface.
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Affiliation(s)
- Dennis Wirth
- Department of Surgery, Dartmouth-Hitchcock Medical Center, 1 Medical Center Dr. Lebanon, NH 03766, USA
| | - Kolbein Kolste
- Thayer School of Engineering, Dartmouth College, 14 Engineering Dr. Hanover, NH 03755, USA
| | - Stephen Kanick
- Thayer School of Engineering, Dartmouth College, 14 Engineering Dr. Hanover, NH 03755, USA
| | - David W. Roberts
- Section of Neurosurgery, Dartmouth-Hitchcock Medical Center, 1 Medical Center Dr. Lebanon, NH 03766, USA
| | - Frédéric Leblond
- Polytechnique Montreal, Engineering Physics Department, Montreal, Québec H3C 3A7, Canada
| | - Keith D. Paulsen
- Thayer School of Engineering, Dartmouth College, 14 Engineering Dr. Hanover, NH 03755, USA
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Miller JP, Maji D, Lam J, Tromberg BJ, Achilefu S. Noninvasive depth estimation using tissue optical properties and a dual-wavelength fluorescent molecular probe in vivo. BIOMEDICAL OPTICS EXPRESS 2017; 8:3095-3109. [PMID: 28663929 PMCID: PMC5480452 DOI: 10.1364/boe.8.003095] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 05/21/2017] [Accepted: 05/25/2017] [Indexed: 05/28/2023]
Abstract
Translation of fluorescence imaging using molecularly targeted imaging agents for real-time assessment of surgical margins in the operating room requires a fast and reliable method to predict tumor depth from planar optical imaging. Here, we developed a dual-wavelength fluorescent molecular probe with distinct visible and near-infrared excitation and emission spectra for depth estimation in mice and a method to predict the optical properties of the imaging medium such that the technique is applicable to a range of medium types. Imaging was conducted at two wavelengths in a simulated blood vessel and an in vivo tumor model. Although the depth estimation method was insensitive to changes in the molecular probe concentration, it was responsive to the optical parameters of the medium. Results of the intra-tumor fluorescent probe injection showed that the average measured tumor sub-surface depths were 1.31 ± 0.442 mm, 1.07 ± 0.187 mm, and 1.42 ± 0.182 mm, and the average estimated sub-surface depths were 0.97 ± 0.308 mm, 1.11 ± 0.428 mm, 1.21 ± 0.492 mm, respectively. Intravenous injection of the molecular probe allowed for selective tumor accumulation, with measured tumor sub-surface depths of 1.28 ± 0.168 mm, and 1.50 ± 0.394 mm, and the estimated depths were 1.46 ± 0.314 mm, and 1.60 ± 0.409 mm, respectively. Expansion of our technique by using material optical properties and mouse skin optical parameters to estimate the sub-surface depth of a tumor demonstrated an agreement between measured and estimated depth within 0.38 mm and 0.63 mm for intra-tumor and intravenous dye injections, respectively. Our results demonstrate the feasibility of dual-wavelength imaging for determining the depth of blood vessels and characterizing the sub-surface depth of tumors in vivo.
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Affiliation(s)
- Jessica P. Miller
- Optical Radiology Lab, Mallinckrodt Institute of Radiology, Washington University School of Medicine, 4515 McKinley Ave, St. Louis, Missouri 63110, USA
- Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, USA
- Co-contributing first authors contributed equally
| | - Dolonchampa Maji
- Optical Radiology Lab, Mallinckrodt Institute of Radiology, Washington University School of Medicine, 4515 McKinley Ave, St. Louis, Missouri 63110, USA
- Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, USA
- Co-contributing first authors contributed equally
| | - Jesse Lam
- Laser Microbeam and Medical Program, Beckman Laser Institute, University of California, Irvine, Irvine, California 92612, USA
| | - Bruce J. Tromberg
- Laser Microbeam and Medical Program, Beckman Laser Institute, University of California, Irvine, Irvine, California 92612, USA
| | - Samuel Achilefu
- Optical Radiology Lab, Mallinckrodt Institute of Radiology, Washington University School of Medicine, 4515 McKinley Ave, St. Louis, Missouri 63110, USA
- Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, USA
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9
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Ovanesyan Z, Mimun LC, Kumar GA, Yust BG, Dannangoda C, Martirosyan KS, Sardar DK. Depth-Resolved Multispectral Sub-Surface Imaging Using Multifunctional Upconversion Phosphors with Paramagnetic Properties. ACS APPLIED MATERIALS & INTERFACES 2015; 7:21465-21471. [PMID: 26322519 PMCID: PMC4597474 DOI: 10.1021/acsami.5b06491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Molecular imaging is very promising technique used for surgical guidance, which requires advancements related to properties of imaging agents and subsequent data retrieval methods from measured multispectral images. In this article, an upconversion material is introduced for subsurface near-infrared imaging and for the depth recovery of the material embedded below the biological tissue. The results confirm significant correlation between the analytical depth estimate of the material under the tissue and the measured ratio of emitted light from the material at two different wavelengths. Experiments with biological tissue samples demonstrate depth resolved imaging using the rare earth doped multifunctional phosphors. In vitro tests reveal no significant toxicity, whereas the magnetic measurements of the phosphors show that the particles are suitable as magnetic resonance imaging agents. The confocal imaging of fibroblast cells with these phosphors reveals their potential for in vivo imaging. The depth-resolved imaging technique with such phosphors has broad implications for real-time intraoperative surgical guidance.
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Affiliation(s)
- Zaven Ovanesyan
- Department of Physics and Astronomy, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - L. Christopher Mimun
- Department of Physics and Astronomy, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Gangadharan Ajith Kumar
- Department of Physics and Astronomy, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Brian G. Yust
- Department of Physics, University of Texas at Rio Grande Valley, Edinburg, Texas 78539, United States
| | - Chamath Dannangoda
- Department of Physics and Astronomy, University of Texas at Rio Grande Valley, Brownsville, Texas 78520, United States
| | - Karen S. Martirosyan
- Department of Physics and Astronomy, University of Texas at Rio Grande Valley, Brownsville, Texas 78520, United States
| | - Dhiraj K. Sardar
- Department of Physics and Astronomy, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
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Jermyn M, Kolste K, Pichette J, Sheehy G, Angulo-Rodríguez L, Paulsen KD, Roberts DW, Wilson BC, Petrecca K, Leblond F. Macroscopic-imaging technique for subsurface quantification of near-infrared markers during surgery. JOURNAL OF BIOMEDICAL OPTICS 2015; 20:036014. [PMID: 25793562 PMCID: PMC4367847 DOI: 10.1117/1.jbo.20.3.036014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 03/03/2015] [Indexed: 05/20/2023]
Abstract
Obtaining accurate quantitative information on the concentration and distribution of fluorescent markers lying at a depth below the surface of optically turbid media, such as tissue, is a significant challenge. Here, we introduce a fluorescence reconstruction technique based on a diffusion light transport model that can be used during surgery, including guiding resection of brain tumors, for depth-resolved quantitative imaging of near-infrared fluorescent markers. Hyperspectral fluorescence images are used to compute a topographic map of the fluorophore distribution, which yields structural and optical constraints for a three-dimensional subsequent hyperspectral diffuse fluorescence reconstruction algorithm. Using the model fluorophore Alexa Fluor 647 and brain-like tissue phantoms, the technique yielded estimates of fluorophore concentration within ±25% of the true value to depths of 5 to 9 mm, depending on the concentration. The approach is practical for integration into a neurosurgical fluorescence microscope and has potential to further extend fluorescence-guided resection using objective and quantified metrics of the presence of residual tumor tissue.
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Affiliation(s)
- Michael Jermyn
- McGill University, Brain Tumour Research Centre, Montreal Neurological Institute and Hospital, Department of Neurology and Neurosurgery, 3801 University Street, Montreal, Quebec H3A 2B4, Canada
- Polytechnique Montreal, Department of Engineering Physics, CP 6079, Succ. Centre-Ville, Montreal, Quebec H3C 3A7, Canada
| | - Kolbein Kolste
- Dartmouth College, Thayer School of Engineering, 14 Engineering Drive, Hanover, New Hampshire 03755, United States
| | - Julien Pichette
- Polytechnique Montreal, Department of Engineering Physics, CP 6079, Succ. Centre-Ville, Montreal, Quebec H3C 3A7, Canada
| | - Guillaume Sheehy
- Polytechnique Montreal, Department of Engineering Physics, CP 6079, Succ. Centre-Ville, Montreal, Quebec H3C 3A7, Canada
| | - Leticia Angulo-Rodríguez
- Polytechnique Montreal, Department of Engineering Physics, CP 6079, Succ. Centre-Ville, Montreal, Quebec H3C 3A7, Canada
| | - Keith D. Paulsen
- Dartmouth College, Thayer School of Engineering, 14 Engineering Drive, Hanover, New Hampshire 03755, United States
| | - David W. Roberts
- Dartmouth-Hitchcock Medical Center, Section of Neurosurgery, Lebanon, New Hampshire 03756, United States
| | - Brian C. Wilson
- University of Toronto/University Health Network, Department of Medical Biophysics, 101 College Street, Toronto, Ontario M5G 1L7, Canada
| | - Kevin Petrecca
- McGill University, Brain Tumour Research Centre, Montreal Neurological Institute and Hospital, Department of Neurology and Neurosurgery, 3801 University Street, Montreal, Quebec H3A 2B4, Canada
| | - Frederic Leblond
- Polytechnique Montreal, Department of Engineering Physics, CP 6079, Succ. Centre-Ville, Montreal, Quebec H3C 3A7, Canada
- Address all correspondence to: Frederic Leblond, E-mail:
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Kolste KK, Kanick SC, Valdés PA, Jermyn M, Wilson BC, Roberts DW, Paulsen KD, Leblond F. Macroscopic optical imaging technique for wide-field estimation of fluorescence depth in optically turbid media for application in brain tumor surgical guidance. JOURNAL OF BIOMEDICAL OPTICS 2015; 20:26002. [PMID: 25652704 PMCID: PMC4405086 DOI: 10.1117/1.jbo.20.2.026002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 01/05/2015] [Indexed: 05/13/2023]
Abstract
A diffuse imaging method is presented that enables wide-field estimation of the depth of fluorescent molecular markers in turbid media by quantifying the deformation of the detected fluorescence spectra due to the wavelength-dependent light attenuation by overlying tissue. This is achieved by measuring the ratio of the fluorescence at two wavelengths in combination with normalization techniques based on diffuse reflectance measurements to evaluate tissue attenuation variations for different depths. It is demonstrated that fluorescence topography can be achieved up to a 5 mm depth using a near-infrared dye with millimeter depth accuracy in turbid media having optical properties representative of normal brain tissue. Wide-field depth estimates are made using optical technology integrated onto a commercial surgical microscope, making this approach feasible for real-world applications.
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Affiliation(s)
- Kolbein K. Kolste
- Dartmouth College, Thayer School of Engineering, Hanover, 14 Engineering Drive, New Hampshire 03755, United States
| | - Stephen C. Kanick
- Dartmouth College, Thayer School of Engineering, Hanover, 14 Engineering Drive, New Hampshire 03755, United States
| | - Pablo A. Valdés
- Dartmouth College, Thayer School of Engineering, Hanover, 14 Engineering Drive, New Hampshire 03755, United States
- Dartmouth College, Geisel School of Medicine, Hanover, 1 Rope Ferry Road, New Hampshire 03755, United States
| | - Michael Jermyn
- Polytechnique Montreal, Engineering Physics Department, Montreal, Québec H3C 3A7, Canada
| | - Brian C. Wilson
- University of Toronto, Ontario Cancer Institute, 610 University Avenue, Toronto, Ontario M5G 2M9, Canada
| | - David W. Roberts
- Dartmouth-Hitchcock Medical Center, Section of Neurosurgery, 1 Medical Center Drive, Lebanon, New Hampshire 03756, United States
| | - Keith D. Paulsen
- Dartmouth College, Thayer School of Engineering, Hanover, 14 Engineering Drive, New Hampshire 03755, United States
| | - Frederic Leblond
- Polytechnique Montreal, Engineering Physics Department, Montreal, Québec H3C 3A7, Canada
- Address all correspondence to: Frederic Leblond, E-mail:
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Zhou T, Ando T, Nakagawa K, Liao H, Kobayashi E, Sakuma I. Localizing fluorophore (centroid) inside a scattering medium by depth perturbation. JOURNAL OF BIOMEDICAL OPTICS 2015; 20:017003. [PMID: 25611868 DOI: 10.1117/1.jbo.20.1.017003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Accepted: 12/29/2014] [Indexed: 06/04/2023]
Abstract
Fluorescence molecular tomography (FMT) imaging can be used to determine the location, size, and biodistribution of fluorophore biomarkers inside tissues. Yet when using FMT in the reflectance geometry it is challenging to accurately localize fluorophores. A depth perturbation method is proposed to determine the centroid of fluorophore inside a tissue-like medium. Through superposition of a known thin optical phantom onto the medium surface, the fluorophore depth is deliberately perturbed and signal localization is improved in a stable way. We hypothesize that the fluorophore centroid can be better localized through use of this fluorescent intensity variation resulting from the depth perturbation. This hypothesis was tested in tissue-like phantoms. The results show that a small-size fluorophore inclusion (1.2 mm(3)volume, depth up to 4.8 mm) can be localized by the method with an error of 0.2 to 0.3 mm. The method is also proven to be capable of handling multiple fluorescent inclusion conditions with the assistance of other strategies. Additionally, our further studies showed that the method's performance in the presence of background fluorophores indicated that the small inclusion could be located at a 1.8 (3.8) mm depth with accurate localization only when its concentration was not <10 (100) times the background level.
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Affiliation(s)
- Tuo Zhou
- The University of Tokyo, Graduate School of Engineering, Department of Precision Engineering, 7-3-1 Hongo Bunkyoku, Tokyo 1138656, Japan
| | - Takehiro Ando
- The University of Tokyo, Graduate School of Engineering, Department of Precision Engineering, 7-3-1 Hongo Bunkyoku, Tokyo 1138656, Japan
| | - Keiichi Nakagawa
- The University of Tokyo, Graduate School of Engineering, Department of Precision Engineering, 7-3-1 Hongo Bunkyoku, Tokyo 1138656, Japan
| | - Hongen Liao
- Tsinghua University, School of Medicine, Department of Biomedical Engineering, 1 Qinghuayuan Haidian District, Beijing 100084, China
| | - Etsuko Kobayashi
- The University of Tokyo, Graduate School of Engineering, Department of Precision Engineering, 7-3-1 Hongo Bunkyoku, Tokyo 1138656, Japan
| | - Ichiro Sakuma
- The University of Tokyo, Graduate School of Engineering, Department of Precision Engineering, 7-3-1 Hongo Bunkyoku, Tokyo 1138656, Japan
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Konecky SD, Owen CM, Rice T, Valdés PA, Kolste K, Wilson BC, Leblond F, Roberts DW, Paulsen KD, Tromberg BJ. Spatial frequency domain tomography of protoporphyrin IX fluorescence in preclinical glioma models. JOURNAL OF BIOMEDICAL OPTICS 2012; 17:056008. [PMID: 22612131 PMCID: PMC3381025 DOI: 10.1117/1.jbo.17.5.056008] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Multifrequency (0 to 0.3 mm(-1)), multiwavelength (633, 680, 720, 800, and 820 nm) spatial frequency domain imaging (SFDI) of 5-aminolevulinic acid-induced protoporphyrin IX (PpIX) was used to recover absorption, scattering, and fluorescence properties of glioblastoma multiforme spheroids in tissue-simulating phantoms and in vivo in a mouse model. Three-dimensional tomographic reconstructions of the frequency-dependent remitted light localized the depths of the spheroids within 500 μm, and the total amount of PpIX in the reconstructed images was constant to within 30% when spheroid depth was varied. In vivo tumor-to-normal contrast was greater than ∼1.5 in reduced scattering coefficient for all wavelengths and was ∼1.3 for the tissue concentration of deoxyhemoglobin (ctHb). The study demonstrates the feasibility of SFDI for providing enhanced image guidance during surgical resection of brain tumors.
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Affiliation(s)
- Soren D. Konecky
- University of California Irvine, Beckman Laser Institute and Medical Clinic, Laser Microbeam and Medical Program (LAMMP), 1002 Health Sciences Road, Irvine, California 92612
| | - Chris M. Owen
- University of California Irvine, Department of Neurological Surgery, 101 The City Drive South, Orange, California 92868
| | - Tyler Rice
- University of California Irvine, Beckman Laser Institute and Medical Clinic, Laser Microbeam and Medical Program (LAMMP), 1002 Health Sciences Road, Irvine, California 92612
| | - Pablo A. Valdés
- Dartmouth-Hitchcock Medical Center, Section of Neurosurgery, Lebanon, New Hampshire 03756
- Thayer School of Engineering, Dartmouth College, 8000 Cummings Hall, Hanover, New Hampshire 03755
| | - Kolbein Kolste
- Thayer School of Engineering, Dartmouth College, 8000 Cummings Hall, Hanover, New Hampshire 03755
| | - Brian C. Wilson
- University of Toronto/Ontario Cancer Institute, 610 University Ave, Toronto, Ontario M5G 2M9, Canada
| | - Frederic Leblond
- Thayer School of Engineering, Dartmouth College, 8000 Cummings Hall, Hanover, New Hampshire 03755
| | - David W. Roberts
- Dartmouth-Hitchcock Medical Center, Section of Neurosurgery, Lebanon, New Hampshire 03756
| | - Keith D. Paulsen
- Thayer School of Engineering, Dartmouth College, 8000 Cummings Hall, Hanover, New Hampshire 03755
| | - Bruce J. Tromberg
- University of California Irvine, Beckman Laser Institute and Medical Clinic, Laser Microbeam and Medical Program (LAMMP), 1002 Health Sciences Road, Irvine, California 92612
- Address all correspondence to: Bruce J. Tromberg, University of California Irvine, Beckman Laser Institute and Medical Clinic, Laser Microbeam and Medical Program (LAMMP), 1002 Health Sciences Road, Irvine, California 92612. Tel.: +949 824 8705; Fax: +949 824 8413; E-mail:
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Pogue BW, Davis SC, Leblond F, Mastanduno MA, Dehghani H, Paulsen KD. Implicit and explicit prior information in near-infrared spectral imaging: accuracy, quantification and diagnostic value. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2011; 369:4531-57. [PMID: 22006905 PMCID: PMC3263784 DOI: 10.1098/rsta.2011.0228] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Near-infrared spectroscopy (NIRS) of tissue provides quantification of absorbers, scattering and luminescent agents in bulk tissue through the use of measurement data and assumptions. Prior knowledge can be critical about things such as (i) the tissue shape and/or structure, (ii) spectral constituents, (iii) limits on parameters, (iv) demographic or biomarker data, and (v) biophysical models of the temporal signal shapes. A general framework of NIRS imaging with prior information is presented, showing that prior information datasets could be incorporated at any step in the NIRS process, with the general workflow being: (i) data acquisition, (ii) pre-processing, (iii) forward model, (iv) inversion/reconstruction, (v) post-processing, and (vi) interpretation/diagnosis. Most of the development in NIRS has used ad hoc or empirical implementations of prior information such as pre-measured absorber or fluorophore spectra, or tissue shapes as estimated by additional imaging tools. A comprehensive analysis would examine what prior information maximizes the accuracy in recovery and value for medical diagnosis, when implemented at separate stages of the NIRS sequence. Individual applications of prior information can show increases in accuracy or improved ability to estimate biochemical features of tissue, while other approaches may not. Most beneficial inclusion of prior information has been in the inversion/reconstruction process, because it solves the mathematical intractability. However, it is not clear that this is always the most beneficial stage.
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Affiliation(s)
- Brian W Pogue
- Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA.
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