Wound colour is a useful parameter by which to monitor wound maturation.
Surface colour measurements of wounds are made using an SP68 Sphere spectrophotometer and CIELAB: an industry wide, internationally recognised numerical colour notation system.
This provides:
- “absolute” and “difference” (e.g. change over time) measurements
- Isolation of different colour attributes such as level of red/green, blue/yellow, dark/light, hue & chroma.
- un-
biased quantitative colour data
Coloration assessments can be made at regular intervals -
Red
+a*
+a*
Green
-a*
-
Yellow
+b*
+b*
Blue
-b*
-
Red
+a*
+a*
Yellow
+b*
+b*
Blue -b*
Green
-a*
-
L=1
L=0
L*
Case Study
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Client wanted to examine the possibility of unwanted skin staining with a novel silver dressing .
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Colour analysis revealed short-
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Colour analysis also demonstrated reduced wound “redness” (reduced inflammation/angiogenesis) as an unexpected effect of treatment (see below for graphed data examples of wound appearance)
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Treated
Control
Example wound images Day 14
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