Please use this identifier to cite or link to this item:
Title: Is Thermal Imaging a Useful Predictor of the Healing Status of Diabetes-Related Foot Ulcers? A Pilot Study.
Austin Authors: Aliahmad, Behzad;Tint, Aye Nyein ;Poosapadi Arjunan, Sridhar;Rani, Priya;Kumar, Dinesh Kant;Miller, Julie A;Zajac, Jeffrey D ;Wang, Gayathiri;Ekinci, Elif I 
Affiliation: School of Engineering, RMIT University, Melbourne, Australia
Medicine (University of Melbourne)
Issue Date: May-2019
Date: 2018-09-26
Publication information: Journal of Diabetes Science & Technology 2019; 13(3): 561-567
Abstract: In clinical practice, both area and temperature of the ulcer have been shown to be effective in tracking the healing status of diabetes-related foot ulcer (DRFU). However, traditionally, the area of the DRFU is measured regardless of the temperature distribution. The current prospective, observational study used thermal imaging, as a more accurate tool, to measure both the area and the temperature of DRFU. We aimed to predict healing of DRFU using thermal imaging within the first 4 weeks of ulceration. A pilot study was conducted where thermal and color images of 26 neuropathic DRFUs (11 healing vs 15 nonhealing) from individuals with type 1 or 2 diabetes were taken at the initial clinic visit (baseline), at week 2, and at week 4. The thermal images were segmented into isothermal patches to identify the wound boundary and area corresponding to temperature distribution. Five parameters were obtained: temperature of the wound bed, area of the isothermal patch of the wound bed, area of isothermal patch of periwound, number of isolated isothermal patches of the wound region, and physical wound bed area from color image. The ulcers were also measured by experienced podiatrists over 4 consecutive weeks and used as the healing reference. For healing cases, the ratio of the area of the wound bed to its baseline measured using thermal images was found to be significantly lower at 2 weeks compared to nonhealing cases and this corresponded with a 50% reduction in area of DRFU at 4 weeks (group rank-based nonparametric analysis of variance P = .036). In comparison, neither the planimetric area measured using color images nor the temperature of the wound bed was associated with the healing. This study of 26 patients demonstrates that change in the isothermal area of DRFU can predict the healing status at week 4. Thermal imaging of DRFUs has the advantage of incorporating both area and temperature allowing for early prediction of the healing of these ulcers. Further studies with greater sample sizes are required to test the significance of these results.
DOI: 10.1177/1932296818803115
ORCID: 0000-0003-3933-5708
Journal: Journal of Diabetes Science & Technology
PubMed URL: 30255722
Type: Journal Article
Subjects: diabetes
diabetes-related foot ulcer
thermal imaging
wound healing
Appears in Collections:Journal articles

Show full item record

Page view(s)

checked on May 17, 2024

Google ScholarTM


Items in AHRO are protected by copyright, with all rights reserved, unless otherwise indicated.