Spectrometric evaluation of post-mortem optical skin changes
Vera Sterzik, Lioudmila Belenkaia, Andreas W Liehr & Michael Bohnert
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abstract
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As to their optical properties, the components of human skin can be
divided into two different categories: the light-scattering
components shown as peaks and those absorbing light appearing as
dips in the reflectance spectrum. As the post-mortem interval
progresses, the concentration of scatterers and absorbers and thus
the reflectance spectra change due to post-mortem tissue breakdown
and degradation. Based on a total number of 532 reflectance
spectrometric measurements in 195 deceased, a characteristic change
in the reflectance spectra could be documented in the post-mortem
course. Subsequently, an algorithm to calculate the post-mortem
interval was developed by analysing the reflectance spectrometric
extrema.
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citation
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Sterzik V, Belenkaia L, Liehr A W, Bohnert M. Spectrometric
evaluation of post-mortem optical skin changes. Int J Legal Med
2013; 128:361-7.
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type
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journal paper/review (English)
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date of publishing
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19-04-2013
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journal title
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Int J Legal Med (128/2)
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ISSN electronic
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1437-1596
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pages
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361-7
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PubMed
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23604392
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DOI
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10.1007/s00414-013-0855-2
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