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Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans
Published on: September 27, 2020
[Significance of postmortem computed tomography in forensic autopsy and its possible issues]
Tomomi Michiue1, Takaki Ishikawa, Tomokazu Nishiguchi
1Department of Legal Medicine, Osaka City University Medical School, Osaka 545-8585, Japan.
Postmortem CT (PM-CT) aids forensic identification and documents findings but has limitations in determining the cause of death. Accumulated data from PM-CT are valuable for reviewing autopsy results.
Area of Science:
- Forensic Pathology
- Radiology
- Medical Imaging
Background:
- Postmortem imaging (PMI), including CT and MRI, is increasingly used in forensic casework.
- The integration of postmortem CT (PM-CT) into routine forensic autopsies requires evaluation of its impact and utility.
Purpose of the Study:
- To assess the short-term impact and utility of postmortem CT (PM-CT) in routine forensic autopsy cases.
- To compare PM-CT findings with autopsy results for identification and pathomorphological assessment.
Main Methods:
- A prospective study of 121 forensic autopsy cases (fetus to 92 years old) over 9 months.
- Comparison of postmortem CT (PM-CT) findings with conventional autopsy findings.
- Evaluation of PM-CT's effectiveness in identification and pathomorphology.
Main Results:
- PM-CT was effective for skeletal/dental identification, superimposition, and detecting foreign materials, though conventional X-ray was superior for small metallic objects.
- PM-CT partially revealed findings related to the immediate cause of death, but underlying causes were difficult to ascertain.
- Accumulated PM-CT data proved useful for retrospective evaluation and review of autopsy findings.
Conclusions:
- Postmortem imaging (PMI) serves as a valuable radiographic screening and documentation tool.
- PM-CT should be considered a supplementary procedure within forensic autopsies, enhancing existing practices.
- The interpretation of PM-CT findings necessitates integration with forensic autopsy expertise.
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