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The possibility and limitation of postmortem computed radiographic analysis of drug intoxication, cervical spine injury, and buthtub death.

Research Project

Project/Area Number 16K09198
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Legal medicine
Research InstitutionTohoku University

Principal Investigator

Usui Akihito  東北大学, 医学系研究科, 助教 (90588394)

Research Collaborator FUNAYAMA masato  
KAWASUMI yusuke  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords法放射線学 / 法医学 / 放射線診断学 / 死亡時画像診断 / 薬物中毒 / 頚椎損傷 / 死後CT / 法医解剖
Outline of Final Research Achievements

We assessed the slices of all stomach areas on consecutive axial CT images in 23 cases of death by oral drug overdose. Twenty cases (87%) cases showed high X-ray absorption in the stomach, while the other three cases (13%) did not demonstrate radio-dense stomach contents even though drug analysis detected lethal concentrations of drugs in the blood. Postmortem gastric CT images can provide useful information in cases of oral drug intoxication, but precise determination of the cause of death requires if there are empty drugs packages or a suicide note at the scene of death. Approximately 70% of the cases with cervical intervertebral separations had various abnormal findings on CT imaging. The CT findings were grouped into the following six categories: intervertebral gas, forward widening, spur fracture, anteroposterior misalignment, backward widening, and hematoma in front of a vertebral body. In bathtub death cases, the data was not stored to analysis.

Academic Significance and Societal Importance of the Research Achievements

解剖による死因診断は重要であるが、これを担う解剖医が不足している現状では、多くの死体について正確に死因診断するのは困難である。そこで、国内に広く普及しているCT装置を使用することで、これを補い、薬物摂取を示唆可能であることや、見落としやすい頚椎損傷の診断ポイントを示したことは大きな意味があると考える。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (14 results)

All 2019 2018 2017 2016

All Journal Article (8 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 8 results,  Open Access: 1 results) Presentation (6 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] A quantitative morphological analysis of three-dimensional CT coxal bone images of contemporary Japanese using homologous models for sex and age estimation2019

    • Author(s)
      Biwasaka Hitoshi、Aoki Yasuhiro、Takahashi Yusuke、Fukuta Mamiko、Usui Akihito、Hosokai Yoshiyuki、Saito Haruo、Funayama Masato、Fujita Sachiko、Takamiya Masataka、Dewa Koji
    • Journal Title

      Legal Medicine

      Volume: 36 Pages: 1-8

    • DOI

      10.1016/j.legalmed.2018.09.017

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Post-mortem computed tomography of cervical intervertebral separation: Retrospective review and comparison of the autopsy results of 57 separations2018

    • Author(s)
      Kudo Seina、Kawasumi Yusuke、Usui Akihito、Arakawa Makoto、Yamagishi Naoto、Igari Yui、Funayama Masato、Ishibashi Tadashi
    • Journal Title

      Journal of Forensic Radiology and Imaging

      Volume: 12 Pages: 57-63

    • DOI

      10.1016/j.jofri.2018.02.007

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Unexpected Death in a Child with a Giant Adrenal Ganglioneuroblastoma2018

    • Author(s)
      Takahashi Shirushi, Funayama Masato, Usui Akihito, Kawasumi Yusuke, Guan Xueting, Igari Yui, Ohuchi Tsukasa, Hayashizaki Yoshie, Usui Kiyotaka
    • Journal Title

      法医学の実際と研究

      Volume: 61 Pages: 195-199

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Postmortem Multi-slice Computed Tomography Can Be an Effective Tool in Identifying Airway Obstruction by Food2018

    • Author(s)
      Usui Akihito, Takahashi Shirushi, Kawasumi Yusuke, Sato Ryotaro, Igari Yui, Guan Xueting, Ohuchi Tsukasa, Usui Kiyotaka, Hayashizaki Yoshie, Saito Haruo, Funayama Masato
    • Journal Title

      法医学の実際と研究

      Volume: 61 Pages: 185-193

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Postmortem Computed Tomographic Analysis of Death Caused by Oral Drug Intoxication2017

    • Author(s)
      Usui A, Kawasumi Y, Usui K, Ishizuka Y, Takahashi K, Funayama M, Saito H.
    • Journal Title

      The Tohoku Journal of Experimental Medicine

      Volume: 242 Issue: 3 Pages: 183-192

    • DOI

      10.1620/tjem.242.183

    • NAID

      130005712457

    • ISSN
      0040-8727, 1349-3329
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Case Report of Postmortem Radiography of Acute, Fatal Abdominal Distension After Binge Eating.2016

    • Author(s)
      Usui A, Kawasumi Y, Ishizuka Y, Hosokai Y, Ikeda T, Saito H, Funayama M.
    • Journal Title

      American Journal of Forensic Medicine & Pathology

      Volume: 37 Pages: 223-226

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A case of fatal sigmoid volvulus visualized on postmortem radiography: The importance of image optimization with multidetector computed tomography.2016

    • Author(s)
      Usui A, Kawasumi Y, Hosokai Y, Ishizuka Y, Ikeda T, Saito H, Funayama M.
    • Journal Title

      Legal Medicine

      Volume: 19 Pages: 32-34

    • DOI

      10.1016/j.legalmed.2016.01.009

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Usefulness and limitations of postmortem computed tomography in forensic analysis of gunshot injuries: Three case reports.2016

    • Author(s)
      Usui A, Kawasumi Y, Hosokai Y, Kozakai M, Saito H, Funayama M.
    • Journal Title

      Legal Medicine

      Volume: 18 Pages: 98-103

    • DOI

      10.1016/j.legalmed.2016.01.004

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Relationship between neuroblastoma and unexpected infant death2018

    • Author(s)
      Funayama Masato, Takahashi Shirushi, Usui Akihito, Kawasumi Yusuke, Igari Yui, Guan Xueting, Ohuchi Tsukasa, Usui Kiyotaka
    • Organizer
      The 24th Congress of the International Academy of Legal Medicine
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Postmortem multislice computed tomography is expected to be an effective tool for airway obstruction by food2018

    • Author(s)
      Funayama Masato, Usui Akihito, Takahashi Shirushi, Kawasumi Yusuke, Igari Yui, Guan Xueting, Ohuchi Tsukasa, Usui Kiyotaka
    • Organizer
      The 24th Congress of the International Academy of Legal Medicine
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Three-dimensional analysis of CT pelvic images using principle component analysis2018

    • Author(s)
      Biwasaka Hitoshi, Aoki Yasuhiro, Fukuta Mamiko, Fujita Sachiko, Takamiya Masataka, Dewa Koji, Usui Akihito, Saito Haruo, Funayama Masato, Sugiyama Kazuhiro
    • Organizer
      The 24th Congress of the International Academy of Legal Medicine
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sex determination using Fourier analysis of postmortem computed tomography images of the skull2018

    • Author(s)
      Hayashizaki Yoshie, Usui Akihito, Takada Aya, Saito Kazuyuki, Yoneyama Katsumi, Hara Masaaki, Nakanishi Hiroaki, Igari Yui, Funayama Masato
    • Organizer
      The 24th Congress of the International Academy of Legal Medicine
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Post-mortem lung features on computed tomography in cardiac death cases: ischemic cardiac death vs. non-ischemic cardiac death.2017

    • Author(s)
      Y. Kawasumi, A. Usui, Y. Hosokai, K. Matsumoto, Y. Ishizuka, K. Takahashi, Y. Hayashizaki, T. Ishibashi, M. Funayama
    • Organizer
      European Congress of Radiology
    • Place of Presentation
      Austria Vienna
    • Year and Date
      2017-03-01
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 薬物中毒における胃融解と生前の上部消化管穿孔との死後CT画像比較2017

    • Author(s)
      平川奈津希、臼井章仁、川住祐介、伊藤雪乃、齋藤春夫、舟山眞人
    • Organizer
      第18回日本法医学会学術北日本地方集会
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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