Ramazan Oğuz, Hakkı Halil Babacan, Faruk Aşıcıoğlu, Hüseyin Üvet
{"title":"Classification of 3D shoe prints using the PointNet architecture: proof of concept investigation of binary classification of nike and adidas outsoles.","authors":"Ramazan Oğuz, Hakkı Halil Babacan, Faruk Aşıcıoğlu, Hüseyin Üvet","doi":"10.1007/s12024-024-00877-6","DOIUrl":"https://doi.org/10.1007/s12024-024-00877-6","url":null,"abstract":"<p><p>Shoe prints are one of the most common types of evidence found at crime scenes, second only to fingerprints. However, studies involving modern approaches such as machine learning and deep learning for the detection and analysis of shoe prints are quite limited in this field. With advancements in technology, positive results have recently emerged for the detection of 2D shoe prints. However, few studies focusing on 3D shoe prints. This study aims to use deep learning methods, specifically the PointNet architecture, for binary classification applications of 3D shoe prints, utilizing two different shoe brands. A 3D dataset created from 160 pairs of shoes was employed for this research. This dataset comprises 797 images from the Adidas brand and 2445 images from the Nike brand. The dataset used in the study includes worn shoe prints. According to the results obtained, the training phase achieved an accuracy of 96%, and the validation phase achieved an accuracy of 93%. These study results are highly positive and indicate promising potential for classifying 3D shoe prints. This study is described as the first classification study conducted using a deep learning method specifically on 3D shoe prints. It provides proof of concept that deep learning research can be conducted on 3D shoeprints. While the developed binary classification of these 3D shoeprints may not fully meet current forensic needs, it will serve as a source of motivation for future research and for the creation of 3D datasets intended for forensic purposes.</p>","PeriodicalId":12449,"journal":{"name":"Forensic Science, Medicine and Pathology","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142132342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ana Julia Pereira, Gustavo A Breglia, Marcelo H Uzal
{"title":"Forensic entomology in homicide cases: study of a corpse found inside a buried vehicle.","authors":"Ana Julia Pereira, Gustavo A Breglia, Marcelo H Uzal","doi":"10.1007/s12024-024-00889-2","DOIUrl":"https://doi.org/10.1007/s12024-024-00889-2","url":null,"abstract":"<p><p>Forensic entomology plays a crucial role in death investigations, particularly in estimating the postmortem interval (PMI). This study presents a forensic entomology case involving a corpse found in a buried utility vehicle. The victim was in an advanced state of decomposition, with autopsy findings revealing gunshot wounds. Cadaveric fauna was collected at the scene and during the autopsy. The analysis revealed a diverse insect community, with predominance of Compsomyiops fulvicrura and Piophila casei. The time of development of species like Dermestes maculatus and Necrobia rufipes was used to estimate the minimum PMI. The presence and low abundance of Calliphora vicina, a species preferring lower temperatures, shed light on the seasonal conditions at the time of death and suggested possible body concealment shortly after death. This research is the first to report insects as evidence in a corpse found in a buried vehicle and contributes to the body of knowledge in forensic entomology. The study also suggests that the use of entomological evidence can provide additional information about the season in which the body was concealed, making it a valuable tool in death investigation and crime scene reconstruction. Finally, it emphasizes the need for proper sampling, expert identification, and close collaboration between forensic entomologists and pathologists.</p>","PeriodicalId":12449,"journal":{"name":"Forensic Science, Medicine and Pathology","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142125294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Forensic expertise in evaluation of malpractice or complications in cases of early postpartum hemorrhage.","authors":"Dubravko Habek","doi":"10.1007/s12024-024-00893-6","DOIUrl":"https://doi.org/10.1007/s12024-024-00893-6","url":null,"abstract":"","PeriodicalId":12449,"journal":{"name":"Forensic Science, Medicine and Pathology","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142125295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Søren Reinhold Jakobsen, Lars Schellerup, Lene Warner Thorup Boel, Kasper Hansen
{"title":"Lung densitometry in postmortem computed tomography - comparison across different fatal asphyxia groups.","authors":"Søren Reinhold Jakobsen, Lars Schellerup, Lene Warner Thorup Boel, Kasper Hansen","doi":"10.1007/s12024-024-00892-7","DOIUrl":"https://doi.org/10.1007/s12024-024-00892-7","url":null,"abstract":"<p><p>Asphyxia as a cause of death poses a diagnostic challenge in forensic medicine due to both the diversity of underlying mechanisms, and lack of specific markers. Acute emphysema or acute alveolar dilation have long been debated as potential findings in these asphyxia cases. To further explore the supplementary findings in our forensic asphyxia cases, this study applied lung densitometry to pulmonary postmortem computed tomography (PMCT) data. Twenty asphyxia cases (including hanging (n = 9), manual strangulation (n = 4), ligature strangulation (n = 1), smothering (n = 3), and choking (n = 3)) and 21 matched control cases were analysed using lung densitometry parameters - specifically quantification of low attenuation areas (LAA) and the 15th percentile point of lung density (Perc15). Our data revealed statistically significantly higher lung % volume falling within LAA at -950HU (p = 0.04) and - 910HU (p = 0.043) in the asphyxia cases compared to matched controls. The Perc15 values observed were trending towards a lower attenuation corresponding to a lower density in the asphyxia group, although this result was not statistically significant (p = 0.13). A subgroup analysis highlighted potential differences within the asphyxia categories, notably, higher Perc15 values were observed in the choking cases. In conclusion the results from the study support the existing evidence of low pulmonary density as a potential finding in asphyxia cases and demonstrate the potential of applying lung densitometry on pulmonary postmortem computed tomography data.</p>","PeriodicalId":12449,"journal":{"name":"Forensic Science, Medicine and Pathology","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142119366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sex assessment from the pelvis: a test of the Phenice (1969) and Klales et al. (2012) methods.","authors":"Vanessa Rae Jager, Constantine Eliopoulos","doi":"10.1007/s12024-023-00685-4","DOIUrl":"10.1007/s12024-023-00685-4","url":null,"abstract":"<p><p>Sex assessment is one of the first steps of routine forensic anthropological examinations and it provides a crucial element to identify a set of human skeletal remains. In bioarchaeological contexts, this assessment is also important, as it helps in the reconstruction of past societies. Sex determination can be achieved by using several morphological or metric traits of the skull and postcranial skeleton, which have been found to have varying degrees of accuracy. In 1969 Phenice proposed a methodology focusing on three traits located on the pubis. These traits were described as either having a female or male morphology with ambiguity being rare. Phenice's method became regularly utilized as it was considered to be reliable. In 2012, Klales and colleagues published a revision of Phenice's method, as they found that it did not capture the variation in the expression of the three traits. Klales and co-authors created a visual ordinal scale of 1-5 for each of the three traits Phenice originally identified, thus adding three extra possible forms of expression. The purpose of the present research was to test both the original and revised methodologies on the same skeletal population in order to evaluate their suitability for the assessment of sex. The Luís Lopes Anthropological collection in Lisbon was used; 117 males and 117 females were scored using both methodologies. The results showed that the original method performed better (96.5% accuracy) than the revised method (92.7%).</p>","PeriodicalId":12449,"journal":{"name":"Forensic Science, Medicine and Pathology","volume":" ","pages":"778-784"},"PeriodicalIF":1.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11525382/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10284698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nora F Fnon, Ayman A Hassan, Hanan H Hosney, Ayman K Mohamed, Athar M Khalifa, Enas M A Mostafa, Mahrous A Ibrahim
{"title":"Placenta percreta in primigravida with unscarred uterus complicated by uterine rupture and sudden maternal and fetal death: an autopsy case report.","authors":"Nora F Fnon, Ayman A Hassan, Hanan H Hosney, Ayman K Mohamed, Athar M Khalifa, Enas M A Mostafa, Mahrous A Ibrahim","doi":"10.1007/s12024-023-00690-7","DOIUrl":"10.1007/s12024-023-00690-7","url":null,"abstract":"<p><p>Placenta percreta is a rare, aggressive, and severe form of the placenta accreta spectrum. One of its most devastating effects is the sudden rupture of uterus. Uterine scarring is the leading risk factor for uterine rupture, although it can also happen, but rarely, in an unscarred uterus showing more severe repercussions. The present study reported a case of an Egyptian primigravida female, aged 29 years old, at 32 weeks of gestation who died suddenly due to uterine rupture complicating placenta percreta, the diagnosis of which was first settled during autopsy. There was no history of abdominal trauma. No medical history of significance was present. Autopsy denoted an intrauterine fetal death of 32 weeks gestational age. The fundus of the uterus had a laceration (rupture) of the uterine wall including the serosa and myometrium. The placenta has extensively infiltrated the fundus uterine wall and penetrated the myometrium and serosa. Histopathological examination of the ruptured site on the uterus confirms total invasion of the uterine wall by chorionic villi with the presence of hemorrhage and fibrin indicating placenta percreta. Uterine rupture due to placenta percreta may go unnoticed, especially when no associated high-risk factors exist. The current case depicts that placenta percreta is a rare but critical complication of pregnancy that may exist at any stage of pregnancy without any associated high-risk factors with unusual symptoms and leads to uterine rupture and sudden death.</p>","PeriodicalId":12449,"journal":{"name":"Forensic Science, Medicine and Pathology","volume":" ","pages":"965-970"},"PeriodicalIF":1.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10078595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comment on: \"Bone marrow embolism: should it result from traumatic bone lesions? a histopathological human autopsy study\".","authors":"Søren Reinhold Jakobsen, Lene Warner Thorup Boel","doi":"10.1007/s12024-023-00676-5","DOIUrl":"10.1007/s12024-023-00676-5","url":null,"abstract":"<p><p>Farid et al., described how 8 of 11 cases of Bone Marrow Embolism were found to be non-traumatic. In our research group we found several shortcomings in the methodology, and within our own Institute we could not replicate the results.</p>","PeriodicalId":12449,"journal":{"name":"Forensic Science, Medicine and Pathology","volume":" ","pages":"1108"},"PeriodicalIF":1.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9827453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Estimation of time since death using cardiac troponin I in case of death due to asphyxia and cardiotoxicity of acebutolol.","authors":"Aashima Mathur, Chandramauly Sharma, Viral Shukla, Yadvendra Agrawal","doi":"10.1007/s12024-023-00719-x","DOIUrl":"10.1007/s12024-023-00719-x","url":null,"abstract":"<p><p>The objective of this study was to investigate the degradation pattern of cardiac troponin I in rats in vivo, and to determine whether the pattern was dependent on the cause of death, for the purpose of estimating the postmortem interval. The rats were categorized into three distinct groups depending on the factors leading to their demise: the control group, the group experiencing acebutolol-induced cardiotoxicity, and the group affected by asphyxia. The analysis encompassed the isolation and segregation of the protein, subsequently employing Western blotting as a means of visualizing the results. The results revealed a distinct degradation pattern of cTnI into smaller fragments over time, indicating that cardiac troponin I can serve as a reliable marker for estimating the postmortem interval. Furthermore, noteworthy variations were noted in the degradation pattern of cardiac troponin I among the different causes of death, which suggests that this method can also be used to determine whether cardiac failure was the cause of death or not.</p>","PeriodicalId":12449,"journal":{"name":"Forensic Science, Medicine and Pathology","volume":" ","pages":"838-846"},"PeriodicalIF":1.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41105220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shuquan Zhao, Zihao Liu, Longda Ma, Min Yin, Yiwu Zhou
{"title":"Potential biomarkers in hypoglycemic brain injury.","authors":"Shuquan Zhao, Zihao Liu, Longda Ma, Min Yin, Yiwu Zhou","doi":"10.1007/s12024-023-00681-8","DOIUrl":"10.1007/s12024-023-00681-8","url":null,"abstract":"<p><p>Oxidative stress is a major underlying mechanism in hypoglycemic brain injury. Several oxidative stress-related proteins were identified through previous proteomics and literature review. The aim of the present study was to evaluate the potential of these proteins as biomarkers in hypoglycemic brain injury. Forty male Sprague Dawley rats were randomly and equally divided into four groups: control, acute hypoglycemia, hypoglycemia resuscitation 24 h, and hypoglycemia resuscitation 7 days. The hypoglycemic brain injury rat model was successfully constructed according to the Auer model. Real-time fluorescent quantitative polymerase chain reaction, western blot analysis, and immunohistochemical staining were used to quantify the expression of oxidative stress-related proteins. We also verified the expression level of selected protein in the brain samples of fatal insulin overdose cases. The expression of oxidative stress-related proteins PEX1/5/12 was down-regulated in hypoglycemic brain injury (P < 0.05), while the expressions of DJ-1 and NDRG1 were up-regulated (P < 0.05). Compared with the control group, the serum oxidative stress indexes SOD and MDA in the acute hypoglycemia group were significantly different (P < 0.01). The expressions of DJ-1 and NDRG1 in the hippocampus, cortex, and hypothalamus of rats were increased (P < 0.05). The expressions of DJ-1 and NDRG1 proteins in the cortex of the autopsy samples of insulin overdose were increased (P < 0.05). Oxidative stress-related proteins showed potential value as specific molecular markers in hypoglycemic brain injury, but further confirmatory studies are needed.</p>","PeriodicalId":12449,"journal":{"name":"Forensic Science, Medicine and Pathology","volume":" ","pages":"810-822"},"PeriodicalIF":1.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9831952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maha Farid, Esraa Zohny, Alaa Ismail, Mariem Ateya, Ahmed Abdel-Razek, Nermien Hamed, Alaa Elmarakby, Arwa Hassanin, Ahmed Ismail, Omar Mansour, Hossam Roshdy, Yehia Ahmed, Mariam Ismail, Hebat Allah A Amin
{"title":"Authors reply to Dr. Jakobsen comment on: \"Bone marrow embolism: should it result from traumatic bone lesions? A histopathological human autopsy study\".","authors":"Maha Farid, Esraa Zohny, Alaa Ismail, Mariem Ateya, Ahmed Abdel-Razek, Nermien Hamed, Alaa Elmarakby, Arwa Hassanin, Ahmed Ismail, Omar Mansour, Hossam Roshdy, Yehia Ahmed, Mariam Ismail, Hebat Allah A Amin","doi":"10.1007/s12024-023-00697-0","DOIUrl":"10.1007/s12024-023-00697-0","url":null,"abstract":"","PeriodicalId":12449,"journal":{"name":"Forensic Science, Medicine and Pathology","volume":" ","pages":"1109-1110"},"PeriodicalIF":1.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10052780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}