Acknowledgement
Supported by : National Forensic Service
Cited by
- Spectral bandwidth correction with optimal parameters based on deep learning vol.60, pp.5, 2018, https://doi.org/10.1364/ao.412526
The Korean Journal of Legal Medicine
- Volume 42 Issue 4
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- Pages.126-140
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- 2018
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- 2383-5702(pISSN)
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- 2383-5710(eISSN)
DOI QR Code
Analysis of the Absorbance Pattern of Postmortem Blood Sample Using Spectrometer
사후 혈액에서 흡광도 분석의 유용성에 관한 연구
- Na, Joo-Young (Biomedical Research Institute, Chonnam National University Hospital) ;
- Park, Jong-Tae (Department of Forensic Medicine, Chonnam National University Medical School)
- Received : 2018.11.15
- Accepted : 2018.11.26
- Published : 2018.11.30
Abstract
The diagnosis of cause of death (COD) or estimation of postmortem interval (PMI) is hard to perform using postmortem blood or other bodily fluids due to various biochemical changes that occur during the agonal phase or after death. To solve these problems, new paradigms and new analytical methods are needed. In this study, postmortem blood was fractionated with specific gravity 1.021, 1.029, 1.038, and 1.045, and the absorbance patterns of each sample of the 131 total cases (12 kinds of COD) were analyzed using a spectrometer. The absorbance was grouped into 9 patterns (ABS pattern 1 to 9) according to the wave length and the signal intensity. These patterns of postmortem blood were found to be distinctly different from the absorbance pattern of fresh blood. The analysis of ABS patterns is useful for the diagnosis of deaths due to acute or rapid bleeding, fire death, drowning and, in some cases, poisoning, but is not useful for the estimation of PMI.