Evaluation of hypostasis using a colorimeter measuring system and its application to assessment of the post-mortem interval (time of death).
Hypostasis was measured in 93 cadavers using a tristimulus colorimeter in order to investigate its relationship with the time of death.
The intensity (lightness) of the hypostasis in each case was measured over a period of 4 h and the rate of change in lightness derived.
When examined against the time of death, it was found that there was a good correlation between the two.
Namely, that the rate of change of lightness (and it can be inferred that this represents displaceability) decreases as the post-mortem period increases.
The shift in hypostasis was particularly marked in the first 12 h and decreased thereafter.
However, hypostasis could be useful for time of death estimation for up to 48 h. After this time, the degree of change was small or non-existent and by 72 h hypostasis had become fixed in the majority of cases, within our measuring period of 4 h.
Mots-clés Pascal : Colorimétrie, Cadavre, Homme, Datation, Mort, Intervalle temps, Méthode étude, Médecine légale, Hypostase
Mots-clés Pascal anglais : Colorimetry, Cadaver, Human, Age estimation, Death, Time interval, Investigation method, Legal medicine
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 96-0186652
Code Inist : 002B30A10. Création : 199608.