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Biocybernetics and Biomedical Engineering

Tytuł artykułu

Investigation of opacity development in the human eye for estimation of the postmortem interval

Autorzy Cantürk, İ.  Çelik, S.  Feyzi Şahin, M.  Yağmur, F.  Kara, S.  Karabiber, F. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN Estimation of the postmortem interval (PMI) has attracted the attention of many researchers. It is generally accepted as a challenging task in forensic medicine. Due to its difficulty, researchers have tried to estimate the PMI using different physical and chemical techniques. Since the PMI estimation accuracies of previous studies are not at the desired level, new methods should be developed to more accurately estimate the PMI. The development of opacity in the eye in the PMI might be an important breakthrough in this field. After death, corneal hydration occurs due to degenerated endothelial cells. The degenerated endothelial barrier of the cornea cannot prevent the flow of aqueous humor to the cornea, which results in opacity. The amount of aqueous humor in the cornea determines the level of opacity. Since the flow of aqueous humor to the cornea will continue for a while, opacity is expected to increase with the PMI. In this study, images of human eyes were investigated using computer-based image analysis. The corneal and non-corneal opacities of the recorded eye images increase during the experiment. The experimental results prove that there is a correlation between the elapsed time after death and the development of opacity in the corneal and non-corneal regions in human cases. Exponential curve fitting is employed to observe the decay of the opacity over time. A repeated ANOVA test is also used to show that the opacity development is statistically significant.
Słowa kluczowe
PL szacowanie czasu śmierci   medycyna sądowa   zmętnienie rogówki   ekstrakcja cech obrazu  
EN time of death estimation   forensic medicine   postmortem interval   corneal opacity   image feature extraction  
Wydawca Nałęcz Institute of Biocybernetics and Biomedical Engineering of the Polish Academy of Sciences
Czasopismo Biocybernetics and Biomedical Engineering
Rocznik 2017
Tom Vol. 37, no. 3
Strony 559--565
Opis fizyczny Bibliogr. 26 poz., rys., tab., wykr.
autor Cantürk, İ.
  • Yıldız Technical University, Davutpasa Campus, Faculty of Electrical & Electronics, Department of Electronics & Communications Engineering, 34220 Esenler, Istanbul, Turkey,
autor Çelik, S.
  • Council of Forensic Medicine, İstanbul, Turkey
autor Feyzi Şahin, M.
  • Council of Forensic Medicine, İstanbul, Turkey
autor Yağmur, F.
  • Faculty of Medicine, İstanbul Medeniyet University, İstanbul, Turkey
autor Kara, S.
  • Institute of Biomedical Engineering, Fatih University, İstanbul, Turkey
autor Karabiber, F.
  • Computer Engineering Department, Yıldız Technical University, İstanbul, Turkey
[1] Kaliszan M. First practical applications of eye temperature measurements for estimation of the time of death in casework. Report of three cases. Forensic Sci Int 2012;219: e13–5.
[2] Usumoto Y, Hikiji W, Sameshima N, Kudo K, Tsuji A, Ikeda N. Estimation of postmortem interval based on the spectrophotometric analysis of postmortem lividity. Legal Med 2010;12:19–22.
[3] Kaliszan M, Hauser R, Kernbach-Wighton G. Estimation of the time of death based on the assessment of post mortem processes with emphasis on body cooling. Legal Med 2009;11:111–7.
[4] Chandrakanth HV, Kanchan T, Balaraj BM, Virupaksha HS, Chandrashekar TN. Postmortem vitreous chemistry – an evaluation of sodium, potassium and chloride levels in estimation of time since death (during the first 36 h after death). J Forensic Legal Med 2013;20:211–6.
[5] Tumram NK, Bardale RV, Dongre AP. Postmortem analysis of synovial fluid and vitreous humour for determination of death interval: a comparative study. Forensic Sci Int 2011;204:186–90.
[6] Vass AA, Barshick SA, Sega G, Caton J, Skeen JT, Love JC, et al. Decomposition chemistry of human remains: a new methodology for determining the postmortem interval. J Forensic Sci 2002;47:542–53.
[7] Cantürk İ, Karabiber F, Çelik S, Şahin MF, Yağmur F, Kara S. An experimental evaluation of electrical skin conductivity changes in postmortem interval and its assessment for time of death estimation. Comput Biol Med 2016;69:92–6.
[8] Behera A. Eye is the spy of Forensic medicine. Medico-legal Update 2005;5. 04-2006.
[9] Aoki T. Studies on the estimation of time after death. Jikeikai Med J 1965;1:3–18.
[10] Tsunenari S, Kanda M. The post-mortem changes of corneal turbidity and its water content. Med Sci Law 1977;17:108–11.
[11] Balci Y, Basmak H, Kocaturk BK, Sahin A, Ozdamar K. The importance of measuring intraocular pressure using a tonometer in order to estimate the postmortem interval. Am J Forensic Med Pathol 2010;31:151–5.
[12] Salam HA, Shaat EA, Aziz MHA, Moneim Sheta AA, Hussein HASM. Estimation of postmortem interval using thanatochemistry and postmortem changes. Alexandria J Med 2012;48:335–44.
[13] Fang D, Liang Y, Chen H. The advance on the mechanism of corneal opacity and its application in forensic medicine. Forensic Sci Technol 2007;2:36–8.
[14] Prieto-Bonete G, Perez-Carceles MD, Luna A. Morphological and histological changes in eye lens: possible application for estimating postmortem interval. Legal Med 2015;17:437– 42.
[15] Honjyo K, Yonemitsu K, Tsunenari S. Estimation of early postmortem intervals by a multiple regression analysis using rectal temperature and non-temperature based postmortem changes. J Clin Forensic Med 2005;12:249–53.
[16] Jaafar S, Nokes L. Examination of the eye as a means to determine the early postmortem period: a review of the literature. Forensic Sci Int 1994;64:185–9.
[17] Li X, Zheng J, Hu Z, Wang B. Relationship between corneal thickness and postmortem interval in rabbit. Fa yi xue za zhi 2013;29:241–3.
[18] Zhu S, Fang D, Wang J. An ultra structural observation of corneal collagen matrix of rabbit in the different time after death. Chin J Forensic Med 2008;23:99–101.
[19] Song G, Shi J. Study of corneal endothelium cell and its application in forensic medicine. Forensic Sci Technol 2001;1:36–7.
[20] Kumar B, Kumari V, Mahto T, Sharma A, Kumar A. Determination of time elapsed since death from the status of transparency of cornea in Ranchi in different weathers; 2012.
[21] Liu F, Zhu S, Fu Y, Fan F, Wang T, Lu S. Image analysis of the relationship between changes of cornea and postmortem interval. PRICAI 2008: Trends in Artificial Intelligence. 2008. pp. 998–1003.
[22] Zhou L, Liu Y, Liu L, Zhuo L, Liang M, Yang F, et al. Image analysis on corneal opacity: a novel method to estimate postmortem interval in rabbits. J Huazhong Univ Sci Technol [Med Sci] 2010;30:235–9.
[23] Ubels JL, Pruis RM, Sybesma JT, Casterton PL. Corneal opacity, hydration and endothelial morphology in the bovine cornea opacity and permeability assay using reduced treatment times. Toxicol Vitro 2000;14:379–86.
[24] Pathrabe T, Karmore S, ESC SIS. A novel approach of embedded system for Indian paper currency recognition. Int J Comput Trends Technol 2011;1:152–6.
[25] Montgomery DC. Design and analysis of experiments. John Wiley & Sons; 2008.
[26] Kawashima W, Hatake K, Kudo R, Nakanishi M, Tamaki S, Kasuda S, et al. Estimating the time after death on the basis of corneal opacity. J Forensic Res 2015;6:1.
PL Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-3ea7b2a7-52d5-4b30-be7d-c02d72653c7c
DOI 10.1016/j.bbe.2017.02.001