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Med Biol Eng Comput. 2012 Feb;50(2):165-71. doi: 10.1007/s11517-012-0860-5. Epub 2012 Jan 20.

How the blood pool properties at onset affect the temporal behavior of simulated bruises.

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1
Biomedical Engineering and Physics, Academic Medical Centre, P.O. Box 22660, 1100 DD Amsterdam, The Netherlands. barbarastam@gmail.com

Abstract

The influence of initial blood pool properties on the temporal behavior of bruises is currently unknown. We addressed this important issue by utilizing three typical classes of bruises in our three-layered finite compartment model. We simulated the effects of their initial shapes, regularity of boundaries and initial blood concentration distributions (gaussian vs. homogeneous) on the hemoglobin and bilirubin areas in the dermal top layer. Age determination of bruises with gaussian hemoglobin concentration was also addressed. We found that the initial blood pool properties strongly affect bruise behavior. We determined the age of a 200-h simulated bruise with gaussian hemoglobin concentration with 3 h uncertainty. In conclusion, bruise behavior depends non-intuitively on the initial blood pool properties; hence, a model that includes shape, area and concentration distribution at onset is indispensable. Future age determination, including inhomogeneous hemoglobin distributions, will likely be based on the presented method for gaussian distributions.

PMID:
22261914
PMCID:
PMC3272227
DOI:
10.1007/s11517-012-0860-5
[Indexed for MEDLINE]
Free PMC Article
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