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URL Address
<a href="http://doi.org/10.1002/lsm.22692" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/lsm.22692</a>
Pages
827–834
Issue
9
Volume
49
Dublin Core
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Title
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Quantitative skin assessment using spatial frequency domain imaging (SFDI) in patients with or at high risk for pressure ulcers.
Publisher
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Lasers in surgery and medicine
Date
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2017
2017-11
Subject
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*camera; *light; *near-infrared; *optics; *photography; *SFDI; *wound; Aged; Diagnostic Imaging – Equipment and Supplies; Diagnostic Imaging – Methods; Feasibility Studies; Female; Human; Humans; Male; Middle Age; Middle Aged; Optical Imaging/instrumentation/*methods; Pilot Studies; Pressure Ulcer; Pressure Ulcer – Etiology; Pressure Ulcer – Pathology; Pressure Ulcer/*diagnostic imaging/etiology/pathology; Prospective Studies; Reproducibility of Results
Creator
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Yafi Amr; Muakkassa Fuad K; Pasupneti Tejasvi; Fulton Judy; Cuccia David J; Mazhar Amaan; Blasiole Kimberly N; Mostow Eliot N
Description
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BACKGROUND AND OBJECTIVE: Pressure ulcers (PU) are a significant problem facing the health system in the United States. Here, we present preliminary case studies demonstrating feasibility of Spatial Frequency Domain Imaging (SFDI) to assess skin status in high-risk populations and pre-existing wounds. SFDI is a wide-field non-contact optical imaging technology that uses structured light to obtain tissue optical properties and of tissue constituents. This study aims to determine the fit of SFDI for PU care and determine the next steps. STUDY DESIGN/MATERIALS AND METHODS: Patients at risk for pressure ulcers were imaged using a near-infrared SFDI system. SFDI-derived images of tissue function (tissue hemoglobin, tissue oxygen saturation) and structure (tissue scattering) were then compared to each other as well as a blinded dermatologist's clinical impressions. RESULTS: Four case series were chosen to demonstrate the imaging capability of this technology. The first scenario demonstrates normal skin of three patients without skin breakdown with spatially uniform measures of tissue oxygen saturation, scattering, and blood volume. The second scenario demonstrates a stage II PU; the third case shows non-blanchable erythema of an unstageable PU; a fourth scenario is a clinically indistinguishable skin rash versus early stages of a PU. In all these cases, we observe spatial changes in tissue constituents (decrease in tissue oxygen saturation, increased blood pooling, decreased scattering). CONCLUSION: We have presented the first use of SFDI for pressure ulcer imaging and staging. This preliminary study demonstrates the feasibility of this optical technology to assess tissue oxygen saturation and blood volume status in a quantitative manner. With the proposed improvements in modeling and hardware, SFDI has potential to provide a means for pressure ulcer risk stratification, healing and staging. Lasers Surg. Med. 49:827-834, 2017 (c) 2017 Wiley Periodicals, Inc.
Identifier
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<a href="http://doi.org/10.1002/lsm.22692" target="_blank" rel="noreferrer noopener">10.1002/lsm.22692</a>
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Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
*camera
*light
*near-infrared
*optics
*photography
*SFDI
*wound
2017
Aged
Blasiole Kimberly N
Cuccia David J
Department of Internal Medicine
Diagnostic Imaging – Equipment and Supplies
Diagnostic Imaging – Methods
Feasibility Studies
Female
Fulton Judy
Human
Humans
Lasers in surgery and medicine
Male
Mazhar Amaan
Middle Age
Middle Aged
Mostow Eliot N
Muakkassa Fuad K
NEOMED College of Medicine
Optical Imaging/instrumentation/*methods
Pasupneti Tejasvi
Pilot Studies
Pressure Ulcer
Pressure Ulcer – Etiology
Pressure Ulcer – Pathology
Pressure Ulcer/*diagnostic imaging/etiology/pathology
Prospective Studies
Reproducibility of Results
Yafi Amr