Thermal and Visual Imaging to Assist with Juvenile Idiopathic Arthritis Examination of the Knees

NWAIZU, Harriet, SAATCHI, Reza, HAWLEY, Daniel Paul and WARD, Oliver (2020). Thermal and Visual Imaging to Assist with Juvenile Idiopathic Arthritis Examination of the Knees. Technologies, 8 (2), e30.

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Juvenile idiopathic arthritis (JIA) causes inflammation of the joints, and it is frequently associated with their pain and stiffness. Its timely diagnosis is important to avoid its progressive damage to the bones and cartilage. Increases in the joint’s temperature and redness could be indicators of active JIA, hence their accurate quantification could assist with diagnosis. Thermal and visual images of the knees in 20 JIA participants (age: mean = 11.2 years, standard deviation = 2.3 years) were studied. The median temperature of knees with active inflammation was 3.198% higher than that of inactive knees. This difference, examined by a Wilcoxon signed-rank test, was statistically significant (p = 0.0078). In six out of the eight participants who had one active inflamed knee, thermal imaging identified the corresponding knee as warmer. In 16 out of 20 participants, the knee identified as warmer by thermal imaging was also identified as having a greater colour change by visual imaging as compared to their respective reference regions. The devised methods could accurately quantify the colour and temperature of the knees. It was concluded that thermal and visual imaging methods can be valuable in examining JIA. Further studies involving a larger number of participants and more detailed explorations would be needed prior to clinical application.

Item Type: Article
Additional Information: ** From MDPI via Jisc Publications Router ** Licence for this article: **Journal IDs: eissn 2227-7080 **History: published 24-05-2020; accepted 21-05-2020
Uncontrolled Keywords: juvenile idiopathic arthritis, thermal imaging, joint temperature, temperature and colour quantification
Identification Number:
Page Range: e30
SWORD Depositor: Colin Knott
Depositing User: Colin Knott
Date Deposited: 27 May 2020 13:22
Last Modified: 18 Mar 2021 01:18

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