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Cetin S, Akbulut N, Orhan K, Bilecenoglu B, Ocak M, Bayram E, Altan A, Eren B, Silsupur S, Oner BS. The micro CT evaluation of crown and root pulp volume versus dentin thickness in teeth in postmortem interval (PMI). Forensic Sci Med Pathol 2024:10.1007/s12024-024-00805-8. [PMID: 38512597 DOI: 10.1007/s12024-024-00805-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/12/2024] [Indexed: 03/23/2024]
Abstract
Determining the postmortem interval (PMI) is one of the main study subjects of forensic sciences. The main purpose of this prospective in vitro study that was the Micro-CT evaluation of teeth crown and root pulp volume versus dentin thickness in terms of PMI determination. The study involved 60 female Wistar rats, with weights ranging from 270 to 320 g. These rats were grouped into six different post-mortem period categories. Following the animals' sacrifice, they were subjected to a natural putrefaction period, with a control group, in the grounds of a sheltered garden. Hemi-mandible samples were then extracted and placed in glass tubes for Micro-CT evaluations, following the progression of putrefaction processes. The pulp volume and dentin thickness were assessed using Micro-CT, and the gathered data underwent statistical analysis. Micro-CT was employed to analyze sixty right mandibular second molar teeth in the hemi-mandible. The crown pulp volume exhibited a reduction in group 6, with a value of 0.239 mm3 after a three-month period of natural putrefaction (p < 0.001). There is statistically differences among groups in case of pairwise comparison (p < 0.05). However, the root pulp volume and dentin thickness variables did not display any statistically significant changes. Despite certain limitations associated with this study, the Micro-CT findings concerning teeth pulp volume can serve as an objective parameter, especially for late postmortem investigations and the estimation of time of death.
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Affiliation(s)
- Selcuk Cetin
- Faculty of Medicine, Department of Forensic Medicine, Tokat Gaziosmanpaşa University, Tokat, Turkey.
| | - Nihat Akbulut
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Ondokuzmayis University, Tokat, Turkey
| | - Kaan Orhan
- Faculty of Dentistry, Oral and Maxillofacial Radiology Department, Ankara University, Ankara, Turkey
- OMFS IMPATH Research Group, Department of Imaging & Pathology, Faculty of Medicine, Oral & Maxillofacial Surgery, University of Leuven, University Hospitals Leuven, Leuven, Belgium
| | - Burak Bilecenoglu
- Faculty of Dentistry, Anatomy Department, Ankara University, Ankara, Turkey
| | - Mert Ocak
- Faculty of Dentistry, Anatomy Department, Ankara University, Ankara, Turkey
| | - Emre Bayram
- Faculty of Dentistry, Endodontics Department, Tokat Gaziosmanpaşa University, Tokat, Turkey
| | - Ahmet Altan
- Faculty of Dentistry, Oral and Maxillofacial Surgery Department, Necmettin Erbakan University, Konya, Turkey
| | - Bulent Eren
- Faculty of Medicine, Department of Forensic Medicine, Kırklareli University, Kırklareli, Turkey
| | - Serkan Silsupur
- Faculty of Dentistry, Endodontics Department, Dicle University, Diyarbakır, Turkey
| | - Bedirhan Sezer Oner
- Faculty of Medicine, Department of Forensic Medicine, Amasya University, Amasya, Turkey
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Edwards H, Shelmerdine SC, Arthurs OJ. Forensic post-mortem CT in children. Clin Radiol 2023; 78:839-847. [PMID: 37827594 DOI: 10.1016/j.crad.2023.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 03/30/2023] [Accepted: 06/02/2023] [Indexed: 10/14/2023]
Abstract
Post-mortem computed tomography (PMCT) imaging is gaining popularity and acceptance for use alongside forensic autopsies of children, predominantly to aid in the detection of traumatic injuries. Recent research on this topic has provided a breadth of new information regarding the appropriate usage, imaging guidance, and diagnostic accuracy for the identification of different paediatric pathologies. Additionally, advanced CT imaging techniques, such as PMCT angiography or ventilated PMCT, have been trialled, and post-mortem micro-CT is now being used in specialist centres for the assessment of subtle fractures in extracted bone specimens. Various image post-processing methods (e.g., three-dimensional printing from PMCT imaging data) are being used for the illustration of injuries in the medicolegal setting to a lay audience and provide another avenue for the future of forensic radiology research. In this review, the evidence-based principles and benefits of post-mortem imaging for forensic investigation in childhood deaths are presented, with a particular focus on PMCT and current practices. Variations in forensic imaging strategies around the world, published diagnostic accuracy rates, and expected normal post-mortem imaging findings are discussed, as well as potential future applications and research in this area.
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Affiliation(s)
- H Edwards
- Alder Hey Children's NHS Foundation Trust, Liverpool L12 2AP, UK
| | - S C Shelmerdine
- Great Ormond Street Hospital for Children NHS Foundation Trust, London WC1N 3JH, UK; UCL Great Ormond Street Institute of Child Health, London, UK; NIHR Great Ormond Street Hospital Biomedical Research Centre, UK
| | - O J Arthurs
- Great Ormond Street Hospital for Children NHS Foundation Trust, London WC1N 3JH, UK; UCL Great Ormond Street Institute of Child Health, London, UK; NIHR Great Ormond Street Hospital Biomedical Research Centre, UK.
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Ducloyer M, Carballeira-Alvarez A, Tuchtan L, Delteil C, Piercecchi-Marti MD, Gorincour G, Prodhomme O. Normal Post-mortem Imaging Findings in Foetuses and Children. FORENSIC IMAGING 2022. [DOI: 10.1007/978-3-030-83352-7_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ducloyer M, David A, Dautreme B, Tournel G, Vincent F, Clement R, Tuchtan L, Delteil C, Gorincour G, Dedouit F. Pictorial review of the postmortem computed tomography in neonaticide cases. Int J Legal Med 2021; 135:2395-2408. [PMID: 34383117 DOI: 10.1007/s00414-021-02677-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 07/26/2021] [Indexed: 11/24/2022]
Abstract
Neonaticide is defined by the deliberate killing or homicide of a child within 24 h of its birth. In this context, three fundamental questions are generally asked of the forensic pathologist: what is the cause of death of the neonate? Was the child viable (i.e., what is the gestational age of the neonate)? Finally, was the neonate stillborn or liveborn?Postmortem imaging can help answer these questions by conducting (1) a complete lesional analysis of the body and the placenta, (2) an estimation of the gestational age by measuring the lengths of the diaphyseal long bones, and (3) an analysis of the aeration of the lungs and intestines. Using the details of 18 cases, we illustrate aspects of neonaticide cases in postmortem computed tomography (PMCT), offering detailed examples of notable postmortem changes and abnormalities, especially in the analysis of the pulmonary parenchyma. This article presents a useful iconography for the radiologist confronted with this rare yet complex forensic situation.
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Affiliation(s)
- Mathilde Ducloyer
- Forensic Department, University Hospital, 30 Boulevard Jean Monnet, 44000, Nantes, France. .,Department of Radiology, Hotel Dieu, University Hospital, Nantes, France. .,GRAVIT, Groupe de Recherche en Autopsie Virtuelle Et Imagerie Thanatologique, Forensic Department, University Hospital, Rangueil, Toulouse, France.
| | - Arthur David
- Department of Radiology, Hotel Dieu, University Hospital, Nantes, France
| | - Bérengère Dautreme
- Forensic Department, University Hospital, Rouen, France.,UTMLA 7367, University of Lille, Lille, France
| | - Gilles Tournel
- Forensic Department, University Hospital, Rouen, France.,EA 4651 ABTE, University of Rouen, Rouen, France
| | | | - Renaud Clement
- Forensic Department, University Hospital, 30 Boulevard Jean Monnet, 44000, Nantes, France
| | - Lucile Tuchtan
- CNRS, EFS, ADES, Aix Marseille Univ, 27 Avenue Jean Moulin, 13385, Marseille, France.,Forensic Department, APHM, La Timone, 264 Rue St Pierre, 13385, Marseille Cedex 05, France
| | - Clémence Delteil
- Forensic Department, APHM, La Timone, 264 Rue St Pierre, 13385, Marseille Cedex 05, France
| | - Guillaume Gorincour
- GRAVIT, Groupe de Recherche en Autopsie Virtuelle Et Imagerie Thanatologique, Forensic Department, University Hospital, Rangueil, Toulouse, France.,Elsan, Clinique Bouchard, Marseille, France
| | - Fabrice Dedouit
- GRAVIT, Groupe de Recherche en Autopsie Virtuelle Et Imagerie Thanatologique, Forensic Department, University Hospital, Rangueil, Toulouse, France.,Forensic Department, University Hospital, Rangueil, Toulouse, France
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Ducloyer M, Tuchtan L, Visseaux G, Gorincour G. Implementing post-mortem computed tomography in the assessment of neonaticide. Forensic Sci Med Pathol 2020; 16:748. [PMID: 32405983 DOI: 10.1007/s12024-020-00255-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/22/2020] [Indexed: 11/25/2022]
Affiliation(s)
- Mathilde Ducloyer
- Department of Radiology, University Hospital, Nantes, France.
- Forensic Medicine Department, University Hospital, Nantes, France.
| | - Lucile Tuchtan
- Forensic Medicine Department, University Hospital, Marseille, France
| | | | - Guillaume Gorincour
- IMAGE2 (Institut Méditerranéen d'Imagerie médicale appliquée à la gynécologie, la grossesse et l'enfance), Marseille, France
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