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An assessment of the accuracy and usability of a novel optical wound measurement system.

Bowling F, King L, Fadavi H, Paterson J, Preece K, Daniel R, Matthews D, Boulton AJM

Diabet Med. 2009;26( 1).

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Abstract

AIMS: Measurement of wound size can predict healing and provide information to guide treatment. This study assesses a novel optical wound imaging system that creates a three-dimensional image of the ulcer. METHODS: Using a new camera-based digital system and traditional elliptical wound measurements, 36 foot ulcers from 31 patients (aged 44-94 years, median 70 years) were examined during a 12-week period at two centres. Median diabetes duration was 18 years (range 6-56 years). Seventeen percent had Type 1 diabetes, 93% had peripheral neuropathy and 57% had peripheral artery disease. Twenty-five were reviewed consecutively, resulting in 76 ulcer examinations. Median ulcer size was 94 mm(2), with size ranging from 3.1 to 2195 mm(2). RESULTS: Pearson, Spearman and Kendall rank coefficients showed a strong correlation (in all cases P < 0.001) between digital measurements of wounds against traditional hand-measured estimates. Intra-observer variation of wound length using digital elliptical measurement (DEM) gave a coefficient of variation of < 3.0%. Interobserver variation of wound length using DEM was < 6.5%. Variation from a standard known-size wound area was < 8.0% across 30 trials. CONCLUSIONS: This study shows a strong correlation between digital and traditional measurement techniques. The system can be easily deployed in routine clinical practice, providing an objective visual record, allowing remote in-depth analysis.

Bibliographic metadata

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Published date:
Journal title:
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Place of publication:
England
Volume:
26( 1)
Digital Object Identifier:
10.1111/j.1464-5491.2008.02611.x
Access state:
Active

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Record metadata

Manchester eScholar ID:
uk-ac-man-scw:1d20959
Created:
30th August, 2009, 15:55:10
Last modified by:
Boulton, Andrew
Last modified:
14th August, 2012, 06:58:42

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