[On the study of postmortem tissue changes' dynamics according to impedance metrics data].

Q4 Medicine

Sudebno-Meditsinskaya Ekspertisa Pub Date : 2023-01-01 DOI:10.17116/sudmed20236606124

I A Tolmachev, O S Lavrukova, E L Kazakova, I V Danilova, A Yu Polyakov

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引用次数: 0

Abstract

Objective: To find a way and form of presenting impedance metrics data to clarify prescription of death coming in a comprehensive assessment.

Material and methods: The impedance of biological objects was measured depending on prescription of death coming in standardized conditions (air temperature +4 °C, humidity 45%). The main examined postmortem period was 1 months. Measurements were made on 3 diagnostic zones of biological object and for 5 current frequency of the study. A total of 2100 readings were taken.

Results and conclusion: The studies performed in standardized conditions have showed that using impedance metrics method to diagnose prescription of death coming is possible. The analysis of only absolute impedance values is not sufficient to clarify prescription of death coming due to its undulating changes. The additional use of relative coefficients, characterizing impedance dispersion, is suggested. The study of possible using the impedance indicators of corpse's tissues to determine prescription of death coming should be performed with consideration to pathomorphology of degradation. Further study of impedance dynamics when corpse is under different conditions is necessary for development of a working algorithm to determine prescription of death coming based on tissue impedance.

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[根据阻抗指标数据研究死后组织变化动态]。

目的材料与方法：在标准化条件下（气温 +4 °C，湿度 45%），根据死亡处方测量生物物体的阻抗。尸检的主要时间为 1 个月。对生物物体的 3 个诊断区和研究的 5 个电流频率进行了测量。结果和结论：在标准化条件下进行的研究表明，使用阻抗测量法诊断死亡处方是可行的。由于阻抗的起伏变化，仅分析绝对阻抗值不足以明确死亡到来的处方。建议额外使用表征阻抗分散的相对系数。研究利用尸体组织的阻抗指标来确定死亡时间的可能性时，应考虑退化的病理形态。有必要对尸体在不同条件下的阻抗动态进行进一步研究，以开发一种有效算法，根据组织阻抗确定死亡时间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Sudebno-Meditsinskaya Ekspertisa Medicine-Pathology and Forensic Medicine

CiteScore

0.60

自引率

0.00%

发文量

期刊介绍： The journal is concerned with the theory and practice of forensic medicine - the problems of thanatology, traumatology, toxicology, serology, forensic obstetrics, forensic dentistry, forensic psychiatry, forensic chemistry, physicotechnical methods of investigation, history of forensic medicine and some problems of criminology and legal laws related to forensic medicine. It publishes original studies by Russian authors, casuistry surveys, abstracts and reviews of Russian and foreign literature, scientific information, reports on scientific conferences.