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Cherkas, L. F., Howell, K., Carter, L., Black, C. M. and MacGregor, A. J. 
ORCID: https://orcid.org/0000-0003-2163-2325
(2001)
The use of portable radiometry to assess Raynaud's phenomenon: a practical alternative to thermal imaging.
Rheumatology, 40 (12).
pp. 1384-1387.
ISSN 1462-0332
Abstract
Objectives. To compare the performance of a portable radiometer with thermal imaging and to assess the potential for radiometry to provide a practical alternative for assessing vascular responsiveness in Raynaud's phenomenon (RP). Methods. Subjects comprised 18 patients with diagnosed RP and 19 non‐RP subjects. A thermal imager (Starsight) and a portable radiometer (Cyclops) measured digital temperature at baseline and the subsequent drop and rise in temperature following a cold challenge test. Results. The intra‐class correlations between the two instruments for all three measures exceeded 80%. The overall performance of each instrument was almost the same, the Starsight thermal imager correctly classifying 84% of subjects as RP or non‐RP and the Cyclops portable radiometer correctly classifying 86% of subjects. The sensitivity of the thermal imager was 83%, compared with 89% for the portable radiometer; the specificity of both instruments was 84%. The positive and negative predictive values of the thermal imager were 83 and 84% respectively, and those for the portable radiometer were 84 and 89%. Conclusions. The two instruments performed equally well and the differences between them in their absolute measurements did not influence their ability to detect RP. Portable radiometry provides a practical, cheap, accurate and reliable alternative to thermal imaging and has the potential to be used in range of clinical and epidemiological settings.
| Item Type: | Article |
|---|---|
| Faculty \ School: | Faculty of Medicine and Health Sciences > Norwich Medical School |
| UEA Research Groups: | Faculty of Science > Research Groups > Norwich Epidemiology Centre Faculty of Medicine and Health Sciences > Research Groups > Norwich Epidemiology Centre Faculty of Medicine and Health Sciences > Research Groups > Nutrition and Preventive Medicine Faculty of Medicine and Health Sciences > Research Groups > Musculoskeletal Medicine Faculty of Medicine and Health Sciences > Research Groups > Epidemiology and Public Health Faculty of Medicine and Health Sciences > Research Groups > Public Health and Health Services Research (former - to 2023) |
| Depositing User: | EPrints Services |
| Date Deposited: | 25 Nov 2010 11:09 |
| Last Modified: | 24 Sep 2024 10:22 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/12318 |
| DOI: | 10.1093/rheumatology/40.12.1384 |
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