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Sensitivity of Temperature-based Time Since Death Estimation on Measurement Location by J. Shanmugam Subramaniam; M. Hubig; H. Muggenthaler; S. Schenkl; J. Ullrich; G. Pourtier; M. Weiser; G. Mall is a Medicine article available to read on EtoBox.

What is Sensitivity of Temperature-based Time Since Death Estimation on Measurement Location about?

Rectal temperature measurement (RTM) from crime scenes is an important parameter for temperature-based time of death estimation (TDE). Various influential variables exist in TDE methods like the uncertainty in thermal and environmental parameters. Although RTM depends in particular on the location of measurement position, this relationship has never been investigated separately. The presented study fills this gap using Finite Element (FE) simulations of body cooling. A manually meshed coarse human FE model and an FE geometry model developed from the CT scan of a male corpse are used for TDE sensitivity analysis. The coarse model is considered with and without a support structure of moist soil. As there is no clear definition of ideal rectal temperature measurement location for TDE, possible variations in RTM location (RTML) are considered based on anatomy and forensic practice. The maximum variation of TDE caused by RTML changes is investigated via FE simulation. Moreover, the influence of ambient temperature, of FE model change and of the models positioning on a wet soil underground are also discussed. As a general outcome, we notice that maximum TDE deviations of up to ca. 2–3 h

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Author

J. Shanmugam Subramaniam; M. Hubig; H. Muggenthaler; S. Schenkl; J. Ullrich; G. Pourtier; M. Weiser; G. Mall

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN

Field

Medicine (Health Sciences)