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Advances in Medical Imaging for Wound Repair and Regenerative Medicine. Regen Med 2023. [DOI: 10.1007/978-981-19-6008-6_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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Zharkikh E, Dremin V, Zherebtsov E, Dunaev A, Meglinski I. Biophotonics methods for functional monitoring of complications of diabetes mellitus. JOURNAL OF BIOPHOTONICS 2020; 13:e202000203. [PMID: 32654427 DOI: 10.1002/jbio.202000203] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/02/2020] [Accepted: 07/04/2020] [Indexed: 06/11/2023]
Abstract
The prevalence of diabetes complications is a significant public health problem with a considerable economic cost. Thus, the timely diagnosis of complications and prevention of their development will contribute to increasing the length and quality of patient life, and reducing the economic costs of their treatment. This article aims to review the current state-of-the-art biophotonics technologies used to identify the complications of diabetes mellitus and assess the quality of their treatment. Additionally, these technologies assess the structural and functional properties of biological tissues, and they include capillaroscopy, laser Doppler flowmetry and hyperspectral imaging, laser speckle contrast imaging, diffuse reflectance spectroscopy and imaging, fluorescence spectroscopy and imaging, optical coherence tomography, optoacoustic imaging and confocal microscopy. Recent advances in the field of optical noninvasive diagnosis suggest a wider introduction of biophotonics technologies into clinical practice and, in particular, in diabetes care units.
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Affiliation(s)
- Elena Zharkikh
- Research & Development Center of Biomedical Photonics, Orel State University, Orel, Russia
| | - Viktor Dremin
- Research & Development Center of Biomedical Photonics, Orel State University, Orel, Russia
- School of Engineering and Applied Science, Aston University, Birmingham, UK
| | - Evgeny Zherebtsov
- Research & Development Center of Biomedical Photonics, Orel State University, Orel, Russia
- Optoelectronics and Measurement Techniques unit, University of Oulu, Oulu, Finland
| | - Andrey Dunaev
- Research & Development Center of Biomedical Photonics, Orel State University, Orel, Russia
| | - Igor Meglinski
- School of Engineering and Applied Science, Aston University, Birmingham, UK
- Optoelectronics and Measurement Techniques unit, University of Oulu, Oulu, Finland
- Interdisciplinary Laboratory of Biophotonics, National Research Tomsk State University, Tomsk, Russia
- Institute of Engineering Physics for Biomedicine (PhysBio), National Research Nuclear University-MEPhI, Moscow, Russia
- School of Life and Health Sciences, Aston University, Birmingham, UK
- Department of Histology, Cytology and Embryology, Institute of Clinical Medicine N.V. Sklifosovsky, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
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Daeschlein G, Langner I, Wild T, von Podewils S, Sicher C, Kiefer T, Jünger M. Hyperspectral imaging as a novel diagnostic tool in microcirculation of wounds. Clin Hemorheol Microcirc 2018; 67:467-474. [PMID: 28885215 DOI: 10.3233/ch-179228] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Monitoring of perfusion is a cornerstone in surgery, phlebology and basic science to proof wound healing by interventions. In chronic wound management it is of utmost importance to realize and parametrize wound bed perfusion to verify actual, and plan further treatment by noninvasive diagnostics. Up to now monitoring is based on visual inspection of wounds as conventionally practiced over more than decades. The main problems of visual inspection are the lack of standardization and comparability because of interindividual variations. Therefore technical performance with contact free probes based on standardized perfusion measuring is strongly needed. Hyperspectral imaging (HSI) was investigated to overcome manual and visual wound inspection in monitoring of wound healing. HSI works noninvasive, and imaging of relevant perfusion parameters is possible without the need of contrast enhancing drugs. METHODS HSI technology uses imaging spectroscopic analysis in visual and near infrared spectrum to get information on imaged tissue in less than 10 s. Tissue is radiated by broad spectrum light and the following parameters are calculated from remitted spectra: the grade of oxygenation and the volume proportion of hemoglobin (in superficial and also deeper (8 mm) tissues. The calculated data comprise the "Tissue hemoglobin oxygen saturation" (StO2) as percental oxygenation index to assess superficial perfusion (VIS-spectrum), the "Near infrared perfusion" (NIR) to assess deeper perfusion (near infrared spectrum) and the "Tissue hemoglobin index" (THI) to measure the percental volume of hemoglobin of surface perfusion (VIS-spectrum). The measurements of these parameters are calculated as false color-coded perfusion results on screen.We investigated different kind of wounds (combustion, infection, ulcer wounds, wounds in immune disorders, trauma wounds) determining superficial and deeper oxygen saturation, hemoglobin distribution and water content using hyperspectral imaging with TIVITA™ Tissue system. RESULTS Hyperspectral Imaging allowed easy real time determination and visualization of hemodynamically relevant parameters- superficial and deeper oxygen saturation, total hemoglobin and tissue water content. In the patient with scleroderma, acral lesions with decreased perfusion correlated well with necrotic skin aspects.HSI clearly revealed macroscopic conspicuous suture wounds after Dupuytren surgery, infected soft tissue wounds with strong inflammatory hyperemia, edema in burn injuries, spatial geometry of abscess formation and chronic ulcer wounds. All measurements influenced further surveillance decisions. Hyperspectral imaging seems suitable for routine diagnostics and monitoring of skin and soft tissue lesions like acute and chronic wounds. It allows surveillance of postoperative suture wounds and burn wounds. Special indications may be transplant surveillance and monitoring of therapeutical interventions.
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Affiliation(s)
- Georg Daeschlein
- Department of Dermatology of the University Medicine Greifswald, Sauerbruchstrasse, Greifswald, Germany
| | - Inga Langner
- Department of Traumatology of the University Medicine Greifswald, Sauerbruchstrasse, Greifswald, Germany
| | - Thomas Wild
- Klinik am See, Rüdersdorf bei Berlin, Germany
| | - Sebastian von Podewils
- Department of Dermatology of the University Medicine Greifswald, Sauerbruchstrasse, Greifswald, Germany
| | - Claudia Sicher
- Department of Dermatology of the University Medicine Greifswald, Sauerbruchstrasse, Greifswald, Germany
| | - Thomas Kiefer
- Departments of Dermatology, Venerology, Allergology and Immunology Center, Dessau Medical Center, Theodor Fontane Medical University Brandenburg, Auenweg, Dessau-Roßlau, Germany
| | - Michael Jünger
- Department of Dermatology of the University Medicine Greifswald, Sauerbruchstrasse, Greifswald, Germany
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Lei J, Rodriguez S, Jayachandran M, Solis E, Epnere K, Perez-Clavijo F, Wigley S, Godavarty A. Assessing the Healing of Venous Leg Ulcers Using a Noncontact Near-Infrared Optical Imaging Approach. Adv Wound Care (New Rochelle) 2018; 7:134-143. [PMID: 29675338 DOI: 10.1089/wound.2017.0745] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 09/30/2017] [Indexed: 11/13/2022] Open
Abstract
Objective: Venous leg ulcers (VLUs) are one of the most common complications in lower extremity wounds. To date, clinicians employ visual inspection of the wound site during its healing process by monitoring surface granulation and reduction in wound size across weeks of treatment. In this study, a handheld near-infrared optical scanner (NIROS) has been developed at the Optical Imaging Laboratory to differentiate healing from nonhealing VLUs based on differences in blood flow to the wound and its surroundings. Approach: Noncontact near-infrared (NIR) area imaging of 12 VLUs have been carried out at two podiatric clinics. Diffuse reflectance images of the wounds were used to quantify optical contrasts between the wound and its surroundings. The variability in imaging conditions, analysis, and operator dependency were assessed to determine the robustness of the imaging approach. Results: Optical contrast obtained from diffuse reflectance images of VLUs were distinctly different for healing (positive contrast) and nonhealing (negative contrast) wounds, independent of the varying imaging and data analysis conditions. Innovation: NIR imaging of wounds to differentiate healing from nonhealing VLUs using a noncontact wide-area imager has been demonstrated for the first time. Conclusion: The application of a portable handheld imager to assess the healing or nonhealing nature of VLUs during weekly clinical treatment is significant since physiological changes, as observed using NIROS, manifest before visual reduction in wound size during the healing process.
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Affiliation(s)
- Jiali Lei
- Department of Biomedical Engineering, Optical Imaging Laboratory, Florida International University, Miami, Florida
| | - Suset Rodriguez
- Department of Biomedical Engineering, Optical Imaging Laboratory, Florida International University, Miami, Florida
| | - Maanasa Jayachandran
- Department of Biomedical Engineering, Optical Imaging Laboratory, Florida International University, Miami, Florida
| | - Elizabeth Solis
- Department of Biomedical Engineering, Optical Imaging Laboratory, Florida International University, Miami, Florida
| | - Katrina Epnere
- Department of Biomedical Engineering, Optical Imaging Laboratory, Florida International University, Miami, Florida
| | | | | | - Anuradha Godavarty
- Department of Biomedical Engineering, Optical Imaging Laboratory, Florida International University, Miami, Florida
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Peng Z, Zhou J, Dacy A, Zhao D, Kearney V, Zhou W, Tang L, Hu W. Design of a portable imager for near-infrared visualization of cutaneous wounds. JOURNAL OF BIOMEDICAL OPTICS 2017; 22:16010. [PMID: 28114448 PMCID: PMC5234331 DOI: 10.1117/1.jbo.22.1.016010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 12/27/2016] [Indexed: 06/06/2023]
Abstract
A portable imager developed for real-time imaging of cutaneous wounds in research settings is described. The imager consists of a high-resolution near-infrared CCD camera capable of detecting both bioluminescence and fluorescence illuminated by an LED ring with a rotatable filter wheel. All external components are integrated into a compact camera attachment. The device is demonstrated to have competitive performance with a commercial animal imaging enclosure box setup in beam uniformity and sensitivity. Specifically, the device was used to visualize the bioluminescence associated with increased reactive oxygen species activity during the wound healing process in a cutaneous wound inflammation model. In addition, this device was employed to observe the fluorescence associated with the activity of matrix metalloproteinases in a mouse lipopolysaccharide-induced infection model. Our results support the use of the portable imager design as a noninvasive and real-time imaging tool to assess the extent of wound inflammation and infection.
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Affiliation(s)
- Zhaoqiang Peng
- University of Texas at Arlington, Department of Electrical Engineering, P.O. Box 19016, Arlington, Texas 76019, United States
| | - Jun Zhou
- University of Texas at Arlington, Department of Bioengineering, P.O. Box 19138, Arlington, Texas 76019, United States
| | - Ashley Dacy
- University of Texas at Arlington, Department of Bioengineering, P.O. Box 19138, Arlington, Texas 76019, United States
| | - Deyin Zhao
- University of Texas at Arlington, Department of Electrical Engineering, P.O. Box 19016, Arlington, Texas 76019, United States
| | - Vasant Kearney
- University of Texas at Arlington, Department of Bioengineering, P.O. Box 19138, Arlington, Texas 76019, United States
| | - Weidong Zhou
- University of Texas at Arlington, Department of Electrical Engineering, P.O. Box 19016, Arlington, Texas 76019, United States
| | - Liping Tang
- University of Texas at Arlington, Department of Bioengineering, P.O. Box 19138, Arlington, Texas 76019, United States
| | - Wenjing Hu
- Progenitec Inc., 917 Parktree Drive, Arlington, Texas 76015, United States
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Jayachandran M, Rodriguez S, Solis E, Lei J, Godavarty A. Critical Review of Noninvasive Optical Technologies for Wound Imaging. Adv Wound Care (New Rochelle) 2016; 5:349-359. [PMID: 27602254 DOI: 10.1089/wound.2015.0678] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 03/08/2016] [Indexed: 01/08/2023] Open
Abstract
Significance: Noninvasive imaging approaches can provide greater information about a wound than visual inspection during the wound healing and treatment process. This review article focuses on various optical imaging techniques developed to image different wound types (more specifically ulcers). Recent Advances: The noninvasive optical imaging approaches in this review include hyperspectral imaging, multispectral imaging, near-infrared spectroscopy (NIRS), diffuse reflectance spectroscopy, optical coherence tomography, laser Doppler imaging, laser speckle imaging, spatial frequency domain imaging, and fluorescence imaging. The various wounds imaged using these techniques include open wounds, chronic wounds, diabetic foot ulcers, decubitus ulcers, venous leg ulcers, and burns. Preliminary work in the development and implementation of a near-infrared optical scanner for wound imaging as a noncontact hand-held device is briefly described. The technology is based on NIRS and has demonstrated its potential to differentiate a healing from nonhealing wound region. Critical Issues: While most of the optical imaging techniques can penetrate few hundred microns to a 1-2 mm from the wound surface, NIRS has the potential to penetrate deeper, demonstrating the potential to image internal wounds. Future Directions: All the technologies are currently at various stages of translational efforts to the clinic, with NIRS holding a greater promise for physiological assessment of the wounds internal, beyond the gold-standard visual assessment.
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Affiliation(s)
- Maanasa Jayachandran
- Optical Imaging Laboratory, Department of Biomedical Engineering, Florida International University, Miami, Florida
| | - Suset Rodriguez
- Optical Imaging Laboratory, Department of Biomedical Engineering, Florida International University, Miami, Florida
| | - Elizabeth Solis
- Optical Imaging Laboratory, Department of Biomedical Engineering, Florida International University, Miami, Florida
| | - Jiali Lei
- Optical Imaging Laboratory, Department of Biomedical Engineering, Florida International University, Miami, Florida
| | - Anuradha Godavarty
- Optical Imaging Laboratory, Department of Biomedical Engineering, Florida International University, Miami, Florida
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Xu G, Piao D, Bunting CF, Dehghani H. Direct-current-based image reconstruction versus direct-current included or excluded frequency-domain reconstruction in diffuse optical tomography. APPLIED OPTICS 2010; 49:3059-3070. [PMID: 20517376 DOI: 10.1364/ao.49.003059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We study the level of image artifacts in optical tomography associated with measurement uncertainty under three reconstruction configurations, namely, by using only direct-current (DC), DC-excluded frequency-domain, and DC-included frequency-domain data. Analytic and synthetic studies demonstrate that, at the same level of measurement uncertainty typical to optical tomography, the ratio of the standard deviation of mu(a) over mu(a) reconstructed by DC only is at least 1.4 times lower than that by frequency-domain methods. The ratio of standard deviations of D (or mu(s)') over D (or mu(s)') reconstructed by DC only are slightly lower than those by frequency-domain methods. Frequency-domain reconstruction including DC generally outperforms that excluding DC, but as the amount of measurements increases, the difference between the two diminishes. Under the condition of a priori structural information, the performances of three reconstruction configurations are seemingly equivalent.
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Affiliation(s)
- Guan Xu
- School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA
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