1.Measuring volume and density of human organs and its significance in medicine and forensic medicine: brain and heart part.
Xiaojun YU ; Maoyang LIU ; Yubo FAN ; Wen YU ; Jinchuan LI ; Dian WANG ; Junyao LU
Journal of Biomedical Engineering 2007;24(1):210-214
The exact scales of volume and density of human internal organs were measured synchronously with the intelligentized volum-densimeter, which was made. by ourself. These primary values of normal and diffuse pathologic changes can refer easily and used for the diagnosis in human autopsy of pathology and forensic pathology. It is expectated to be co-operated widely in that the basic values of volume and density will be obtained from all organs of the human body with the population of different races. But up to now, we are still lack these primary values in anthropology and medicine.
Anthropometry
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instrumentation
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methods
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Brain
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anatomy & histology
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Forensic Medicine
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Heart
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anatomy & histology
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Humans
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Organ Size
2.The development and application of lie detection in forensic science.
Lu WANG ; Ling YANG ; Yan GE ; Ji-Feng CAI ; Yun-Feng CHANG ; Ling-Mei LAN
Journal of Forensic Medicine 2008;24(5):365-368
Lie detection technology has been applied increasingly to investigate and solve criminal cases. This article explores the evolvement of lie detection technology in the ancient times and the application of the psychological and physiological parameters which have become more accurate with the introduction of modern polygraph. The cognitive exploration and the application of Event Related Potentials (ERPs), functional Magnetic Resonance Imaging (fMRI), and Event-Related functional Magnetic Resonance Imaging (E-R fMRI) have made detection technology focus on the brain activities, which produce more objective results by tracing the original state of lying. In summary, this article describes different types of lie detections, simple and complex, their working principles, the latest development, and the prospect of their application in forensic science.
Evoked Potentials
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Forensic Medicine
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Humans
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Lie Detection
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Magnetic Resonance Imaging/methods*
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Psychophysiology/instrumentation*
3.Development of Lung Compression Degree Measurement Software of Pneumothorax and Its Application in Forensic Medicine.
Yong Bo WU ; Bin WU ; Yang LI ; Xiao Fei HU ; Dong Lei SI
Journal of Forensic Medicine 2018;34(3):260-263
OBJECTIVES:
To develop a measurement software of lung compression degree to calculate the lung compression ratio in pneumothorax patients accurately and quickly, and then provide an objective assessment of damage degree in forensic clinical identification.
METHODS:
A volume calculation software was established according to the working principle of the CT instrument. CT data of 15 pneumothorax patients were selected as research objects. The lung compression ratio of pneumothorax patient was calculated by the lung compression volume calculation software of the CT instrument. Meanwhile, the lung compression ratio was also calculated by the developed volume calculation software. The lung compression ratio and operation time calculated by the two methods were analyzed statistically. Scatter plot graphs were draw based on related data, and the developed volume calculation software was verified.
RESULTS:
The difference between the lung compression ratios calculated by the two methods was not statistically significant, but showed a linear correlation (P<0.05). The operation time of the developed volume calculation software was obviously shorter.
CONCLUSIONS
The volume calculation software developed in this study can calculate the lung compression degree of pneumothorax more conveniently and rapidly with easy accessibility, which shows an application value in the forensic practice.
Forensic Medicine/instrumentation*
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Humans
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Image Processing, Computer-Assisted/methods*
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Lung/diagnostic imaging*
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Pneumothorax
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Software
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Tomography, X-Ray Computed
4.Common Postmortem Computed Tomography Findings Following Atraumatic Death: Differentiation between Normal Postmortem Changes and Pathologic Lesions.
Masanori ISHIDA ; Wataru GONOI ; Hidemi OKUMA ; Go SHIROTA ; Yukako SHINTANI ; Hiroyuki ABE ; Yutaka TAKAZAWA ; Masashi FUKAYAMA ; Kuni OHTOMO
Korean Journal of Radiology 2015;16(4):798-809
Computed tomography (CT) is widely used in postmortem investigations as an adjunct to the traditional autopsy in forensic medicine. To date, several studies have described postmortem CT findings as being caused by normal postmortem changes. However, on interpretation, postmortem CT findings that are seemingly due to normal postmortem changes initially, may not have been mere postmortem artifacts. In this pictorial essay, we describe the common postmortem CT findings in cases of atraumatic in-hospital death and describe the diagnostic pitfalls of normal postmortem changes that can mimic real pathologic lesions.
Adult
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Aged
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Autopsy/instrumentation/*methods
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Brain/pathology/radiography
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Female
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Forensic Medicine/instrumentation/*methods
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Gastrointestinal Tract/pathology/radiography
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Heart/radiography
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Humans
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Lung/pathology/radiography
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Male
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Middle Aged
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Myocardium/pathology
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Postmortem Changes
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Tomography, X-Ray Computed/*methods