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Post-mortem computed tomography in forensic shooting distance estimation : a porcine cadaver study |
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| Author: | Junno, Juho-Antti1,2,3; Kotiaho, Antti4; Oura, Petteri5,6,7 |
| Organizations: |
1Cancer and Translational Medicine Research Unit, Faculty of Medicine, University of Oulu, Oulu, Finland 2Department of Archaeology, Faculty of Humanities, University of Oulu, Oulu, Finland 3Archaeology, Faculty of Arts, University of Helsinki, Helsinki, Finland
4Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
5Department of Forensic Medicine, Faculty of Medicine, University of Helsinki, P.O. Box 21, 00014, Helsinki, Finland 6Forensic Medicine Unit, Finnish Institute for Health and Welfare, Helsinki, Finland 7Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland |
| Format: | article |
| Version: | published version |
| Access: | open |
| Online Access: | PDF Full Text (PDF, 1 MB) |
| Persistent link: | http://urn.fi/urn:nbn:fi-fe2022050432546 |
| Language: | English |
| Published: |
Springer Nature,
2022
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| Publish Date: | 2022-05-04 |
| Description: |
AbstractObjectives: Gunshot wounds are frequently studied using computed tomography (CT) to examine tissue damage. In this study, we aimed to test the potential of post-mortem CT (PMCT) in shooting distance estimation at distances 0–100 cm. We hypothesized that in addition to the wound channel, we could also potentially detect tissue damage caused by muzzle pressure on PMCT. Results: A total of 59 gunshot wounds (23 contact shots, 21 close-range shots, 15 distant shots) were inflicted on eight piglet carcasses with a .22 Long Rifle handgun. PMCT scans were obtained using clinical equipment, and they were evaluated for wound characteristics by visual inspection and numeric measurements. In our data, contact shots could be clearly distinguished from close-range and distant shots by a hyperdense ring-shaped area surrounding the outermost part of the wound channel. Close-range and distant shot wounds did not have this feature and were difficult to distinguish from each other. The mean wound channel diameter ranged from 3.4 to 5.4 mm, being smallest in contact shots and largest in distant shots. These preliminary findings suggest that PMCT may aid the estimation of shooting distance. As this study only addressed low velocity gunshot wounds in carcasses, further studies are warranted. see all
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| Series: |
BMC research notes |
| ISSN: | 1756-0500 |
| ISSN-E: | 1756-0500 |
| ISSN-L: | 1756-0500 |
| Volume: | 15 |
| Article number: | 103 |
| DOI: | 10.1186/s13104-022-05997-2 |
| OADOI: | https://oadoi.org/10.1186/s13104-022-05997-2 |
| Type of Publication: |
A1 Journal article – refereed |
| Field of Science: |
319 Forensic science and other medical sciences |
| Subjects: | |
| Funding: |
Open access funded by Helsinki University Library. |
| Copyright information: |
© The Author(s) 2022. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
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https://creativecommons.org/licenses/by/4.0/ |