Application of Postmortem 3D‐CT Facial Reconstruction for Personal Identification* |
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| Authors: | Ayaka Sakuma DDS Masuko Ishii MSc Seiji Yamamoto MD PhD Ryota Shimofusa MD PhD Kazuhiro Kobayashi MSc Hisako Motani DDS PhD Mutsumi Hayakawa MD PhD Daisuke Yajima MD PhD Hisako Takeichi PhD Hirotaro Iwase MD PhD |
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| Institution: | 1. Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1‐8‐1 Inohana, Chuo‐ku, Chiba 260‐8670, Japan.;2. Forensic Science Laboratory, Chiba Prefecture Police Headquarters, 1‐71‐1 Chuominato, Chuo‐ku, Chiba 260‐0024, Japan.;3. Department of Radiology, Graduate School of Medicine, Chiba University, 1‐8‐1 Inohana, Chuo‐ku, Chiba 260‐8677, Japan. |
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| Abstract: | Abstract: Postmortem computed tomography (CT) images can show internal findings related to the cause of death, and it can be a useful method for forensic diagnosis. In this study, we scanned a ready‐made box by helical CT on 2‐mm slices in a mobile CT scanner and measured each side of the box to assess whether reconstructed images are useful for superimposition. The mean difference between the actual measurements and the measurements on the three‐dimensional (3D) reconstructed images (3D‐CT images) is 0.9 mm; we regarded it as having no effect on reconstruction for the superimposition method. Furthermore, we could get 3D‐CT images of the skull, which were consistent with the actual skull, indicating that CT images can be applied to superimposition for identification. This study suggested that postmortem CT images can be applied as superimpositions for unidentified cases, and thinner slices or cone beam CT can be a more precise tool. |
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| Keywords: | forensic science forensic diagnosis postmortem images computed tomography three‐dimensional reconstruction superimposition |
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