Thermal imaging potential and limitations to predict healing of venous leg ulcers

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Monshipouri, Mahta
Aliahmad, Behzad
Ogrin, Rajna
Elder, Kylie
Anderson, Jacinta
Polus, Barbara
Kumar, Dinesh
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2021
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Abstract

Area analysis of thermal images can detect delayed healing in diabetes foot ulcers, but not venous leg ulcers (VLU) assessed in the home environment. This study proposes using textural analysis of thermal images to predict the healing trajectory of venous leg ulcers assessed in home settings. Participants with VLU were followed over twelve weeks. Digital images, thermal images and planimetry of wound tracings of the ulcers of 60 older participants was recorded in their homes by nurses. Participants were labelled as healed or unhealed based on status of the wound at the 12th week follow up. The weekly change in textural features was computed and the first two principal components were obtained. 60 participants (aged 80.53 ± 11.94 years) with 72 wounds (mean area 21.32 ± 51.28cm2) were included in the study. The first PCA of the change in textural features in week 2 with respect to week 0 were statistically significant for differentiating between healed and unhealed cases. Textural analysis of thermal images is an effective method to predict in week 2 which venous leg ulcers will not heal by week 12 among older people whose wounds are being managed in their homes.

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Scientific Reports

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11

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1

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© The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.

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Clinical sciences

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Monshipouri, M; Aliahmad, B; Ogrin, R; Elder, K; Anderson, J; Polus, B; Kumar, D, Thermal imaging potential and limitations to predict healing of venous leg ulcers, Scientific Reports, 2021, 11 (1), pp. 13239

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