Quantitative skin assessment using spatial frequency domain imaging (SFDI) in patients with or at high risk for pressure ulcers.

Title

Quantitative skin assessment using spatial frequency domain imaging (SFDI) in patients with or at high risk for pressure ulcers.

Creator

Yafi Amr; Muakkassa Fuad K; Pasupneti Tejasvi; Fulton Judy; Cuccia David J; Mazhar Amaan; Blasiole Kimberly N; Mostow Eliot N

Publisher

Lasers in surgery and medicine

Date

2017
2017-11

Description

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.

Subject

*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

Identifier

Rights

Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).

Pages

827–834

Issue

9

Volume

49

Citation

Yafi Amr; Muakkassa Fuad K; Pasupneti Tejasvi; Fulton Judy; Cuccia David J; Mazhar Amaan; Blasiole Kimberly N; Mostow Eliot N, “Quantitative skin assessment using spatial frequency domain imaging (SFDI) in patients with or at high risk for pressure ulcers.,” NEOMED Bibliography Database, accessed October 21, 2021, https://neomed.omeka.net/items/show/3076.

Social Bookmarking