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93 Z. Rechtsmedizin 1 (1984)

handle is hein.journals/injlegame93 and id is 1 raw text is: Zeitschrift fur Z Rechtsmed (1984) 93:1-22 Rechtsmedizin © Springer-Verlag 1984 Originalarbeiten / Original Works Todeszeitbestimmung durch Messung der zentralen Hirntemperatur* C.HenBge1, E.-R.Beckmann2, F. Wischhusen2 und B.Brinkmannt 1Institut fur Rechtsmedizin der Universitat Munster, von-Esmarch-StraBe 86, D-4400 Munster, Bundesrepublik Deutschland 2Institut fur Rechtsmedizin der Universitat Hamburg, Butenfeld 34, D-2000 Hamburg 54, Bundesrepublik Deutschland Determination of Time of Death by Measuring Central Brain Temperature Summary. The central brain temperature was recorded in 53 human corpses, stored at constant ambient temperatures between 100 and 30 C. The measure- ments were started on average 1.6h post mortem and continued for 8-50h. The sigmoidal shape of the temperature curves fitted the mathematical model of Marshall and Hoare (1962). This model provides a precise description of the temperature curves. For 44 corpses, studied at temperatures between 100 and 25 C, the time of death was calculated using fixed values for the adapta- tion parameters of the model. The margins of error for the 95% tolerance limit were ± 1.5h up to 6.5h post mortem, 2.5h between 6.5 and 10.5h post mortem and ±3.5 h between 10.5 and 13.5 h post mortem. For the recommen- ded practical application a brain temperature-time of death nomogram is presented. We found that the rate of cooling was influenced by the amount of hair. Furthermore, it has been argued that the study method could be improved further. In consequence, we expect the central brain temperature to be even more accurate in the calculation of the time of death than has been discussed and shown on the basis of the present material. Key words: Computation of time of death, brain cooling -Brain temperature- time of death nomogram Zusammenfassung. Von 53 in relativ konstanter Umgebungstemperatur zwischen 100 und 30°C gelagerten Leichen wurde die Temperatur im Zentrum des Gehirns registriert. Die Messungen wurden im Mittel 1,6h post mortem begonnen. Die MeBdauer betrug zwischen 8 und 50 Stunden. Die sigmoida- len Abkuhlkurven wurden mit dem von Marshall und Hoare (1962) angege- benen Modell mathematisch beschrieben. Das Modell ist fur eine prazise Beschreibung der Abkuhlkurven geeignet. Fur die 44 Untersuchungen im * Herrn Prof. Dr. O. Gruner zum 65. Geburtstag gewidmet Sonderdruckanfragen an: Prof. Dr. B. Brinkmann (Adresse siehe oben)

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