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Measuring leg ulcers using a laser displacement sensor.

D A Ibbett·R E Dugdale·G C Hart·K R Vowden·P Vowden
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Abstract

A non-contact method for the measurement of a skin ulcer's area and volume has been developed. A commercially available laser displacement sensor is scanned across the ulcer's surface to produce a displacement image. From this image the healthy normal skin's surface is reconstructed and the area and volume found. Results of measurements made with phantom ulcers show that the method has a precision and accuracy +/- 5% of the total size. This compares favourably with results from other non-contact methods that have been published. The method of measurement is simple and reliable. At present, the time taken to produce a displacement image is lengthy but this is due to a limitation in the instrumentation, rather that a failing of the technique. The result of a preliminary measurement made on a patient's leg ulcer is presented.

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HumansLasersModels, TheoreticalReference ValuesSensitivity and SpecificitySkin Physiological PhenomenaSkin UlcerWound HealingComparative StudyJournal ArticleResearch Support, Non-U.S. Gov't

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D A Ibbett, R E Dugdale, G C Hart, K R Vowden, P Vowden. 1994. Measuring leg ulcers using a laser displacement sensor.. https://doi.org/10.1088/0967-3334%2F15%2F3%2F011

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