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Faculty of Medicine School of Medicine Department of Social Medicine, Legal Medicine |
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Assistant Professor |
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SHINKAWA Norihiro
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Research Areas 【 display / non-display 】
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Life Science / Radiological sciences
Papers 【 display / non-display 】
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Yano K., Aoki N., Nakamura Y., Shinkawa N., Kakizaki E., Sonoda A., Koppenol W.H., Yukawa N.
International Journal of Pediatric Otorhinolaryngology 204 112806 2026.5
Language：English Publishing type：Research paper (scientific journal) Publisher：International Journal of Pediatric Otorhinolaryngology
Purpose: Button battery injury results from tissue alkalization due to the generation of HO<sup>−</sup> at the negative electrode by electrolysis. Here, we conducted in vitro experiments to test the hypothesis that the principal oxidation reaction occurs at the positive electrode and is the result of dissolution of metals constituting the electrode, and in the case of 3 V batteries, H<inf>2</inf>O and chloride ions (Cl<sup>−</sup>) are also oxidized. Methods: 1) Physiological saline solutions were electrolyzed at 1.5 or 3 V in agarose gel for 2 h with an iron (Fe) nail or non-dissolving carbon (C) rod as the positive electrode. HO<sup>−</sup> generation was visualized using a pH indicator. 2) A 1.5 or 3 V button battery was placed in agarose gel for 2 h. Results: 1) At 1.5 V, HO<sup>−</sup> was generated with a positive Fe electrode but not with a positive C electrode. At 3 V, HO<sup>−</sup> was generated with a positive C electrode, although less intensely. At both voltages, precipitates formed where the diffusion fronts of HO<sup>−</sup> and dissolved Fe<sup>2+</sup> met. 2) Precipitate was formed on the rim of the button battery where the ionic current was the most intense and dissolution proceeded. Conclusion: At 1.5 V, dissolution of the positive electrode was nearly the sole oxidation reaction. At 3 V, H<inf>2</inf>O and Cl<sup>−</sup> were also oxidized. These results confirm the hypothesis. Clinically, visible dissolution (corrosion) of the rim of the button battery on plain radiography could indicate considerable HO<sup>−</sup> concentration, suggesting higher-grade mucosal injuries and more severe complications.
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Metastatic Cardiac Tumor Mimicking Coronary Artery Aneurysm on Postmortem Computed Tomography. Reviewed
Shinkawa N, Yamada R, Azuma M, Shinkawa N, Yukawa N
The American journal of forensic medicine and pathology 47 ( 1 ) e4 - e6 2026.3
Language：English Publishing type：Research paper (scientific journal)
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An Autopsy Case of Drowning With Suspected Cadaveric Spasm Reviewed
Sonoda A., Shinkawa N., Kakizaki E., Yukawa N.
American Journal of Forensic Medicine and Pathology 47 ( 1 ) 87 - 91 2026.3
Language：English Publishing type：Research paper (scientific journal) Publisher：American Journal of Forensic Medicine and Pathology
We recently investigated a death involving a drowning victim found in a slow-flowing part of a river with the right hand clutching a branch of bamboo growing along the bank. Such hand findings have traditionally been ascribed to cadaveric spasm, supposedly representing a stiffening of the muscles that occurs immediately after death. However, another persuasive opinion is that cadaveric spasm is a myth. A rational explanation for our case might thus be that the hand became flaccid immediately after death, but the bamboo branch remained close to the fingers under slow flow, and the subsequent onset of rigor mortis caused the hand to “grasp” the bamboo branch. However, another report of a drowning case described a blade of grass clutched in a hand despite a strong flow in an irrigation canal, which had swept the deceased 5.5 km downstream and stripped off all clothing. That case was difficult to explain without cadaveric spasm, and 2 animal studies have also shown the development of rigor mortis in a small proportion of animals immediately after death. We thus believe that cadaveric spasm deserves further consideration and should not yet be ruled out.
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Mesenteric Panniculitis and the Misty Mesentery Sign on PMCT Reviewed
Shinkawa N., Nakano Y., Nagata K., Shinkawa N., Azuma M., Yukawa N.
American Journal of Forensic Medicine and Pathology Publish Ahead of Print 2026.1
Language：English Publishing type：Research paper (scientific journal) Publisher：American Journal of Forensic Medicine and Pathology
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Histologic and Ultrastructural Features of Tracheal Pseudo-Goblet Cells in Fire-Related Death Reviewed
Shinkawa N., Sawaguchi A., Yukawa N., Sonoda A., Kakizaki E.
American Journal of Forensic Medicine and Pathology Publish Ahead of Print 2026
Language：English Publishing type：Research paper (scientific journal) Publisher：American Journal of Forensic Medicine and Pathology
Books 【 display / non-display 】
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Aiの概念?定義・関連法・職域・団体?職務として携わる人々からみたAiとは（役割と問題点）放射線科医
新川 慶明、髙橋 直也（ Role： Edit）
株式会社ベクトル・コア 2015.7
Language：Japanese Book type：Scholarly book
MISC 【 display / non-display 】
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Yukawa N., Shinkawa N., Yano K., Tachibana M., Kakizaki E., Sonoda A.
Legal Medicine 60 102176 2023.2
Language：Japanese Publishing type：Rapid communication, short report, research note, etc. (scientific journal) Publisher：Legal Medicine
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Azuma M., Nakada H., Takei M., Nakamura K., Katsuragawa S., Shinkawa N., Terada T., Masuda R., Hattori Y., Ide T., Kimura A., Shimomura M., Kawano M., Matsumura K., Meiri T., Ochiai H., Hirai T.
Emergency Radiology 29 ( 2 ) 425 2022.4
Language：Japanese Publishing type：Rapid communication, short report, research note, etc. (scientific journal) Publisher：Emergency Radiology
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縦隔気腫 Reviewed
新川慶明，柳田美津郎
オートプシー・イメージング症例集２ 2018.4
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)
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Aiにおける特徴対応異種画像統合法を用いた診断技術研究 Reviewed
西井龍一，新川慶明，Thi Thi Zin
INNERVISION 33 ( 12 ) 18 - 20 2018
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)
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CASE OF THE MONTH,CASE OF March Invited
新川慶明、新川仁奈子、平井俊範
画像診断 37 ( 3 ) 351 - 351 2017.2
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：秀潤社
Presentations 【 display / non-display 】
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Differentiation of drowning in seawater and freshwater with pleural effusion: A phantom study using dual-layer spectral CT International conference
Norihiro Shinkawa, Toshinori Hirai, Nobuhiro Yukawa, Ai Sonoda, Eiji Kakizaki
RSNA2019
Event date： 2019.12.1 - 2019.12.6
Language：English Presentation type：Oral presentation (general)
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血液水溶液への可視光照射によるルミノール反応の加速効果
林 里采，白上 努，柿崎英二，新川慶明，園田 愛，湯川修弘
第69回日本法医学会学術九州地方集会
Event date： 2019.10.25 - 2019.10.26
Language：Japanese Presentation type：Oral presentation (general)
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切断された遺体に骨化性筋炎を認め、生前の暴行が疑われた一例
新川慶明，柿崎英二，林 里采，園田 愛，湯川修弘
第69回日本法医学会学術九州地方集会
Event date： 2019.10.25 - 2019.10.26
Language：Japanese Presentation type：Oral presentation (general)
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切断された遺体に骨化性筋炎を認め、生前の暴行が疑われた一例
新川慶明，柿崎英二，園田 愛，林 里采，湯川修弘
第69回日本法医学会学術九州地方集会
Event date： 2019.10.25
Language：Japanese Presentation type：Oral presentation (general)
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慢性硬膜下出血内に認められたヘマトイジン含有マクロファージと思われる黄色色素含有細胞
新川 慶明，園田 愛，松山 美紀，柿崎 英二，林 里采， 和田 啓，湯川 修弘
第103次日本法医学会学術全国集会 (仙台サンプラザ) 日本法医学会
Event date： 2019.6.12 - 2019.6.15
Language：Japanese Presentation type：Poster presentation
Venue：仙台サンプラザ
Grant-in-Aid for Scientific Research 【 display / non-display 】
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焼損死体における諸臓器のCT値の解析
Grant number：23K14843 2023.04 - 2026.03
独立行政法人日本学術振興会 科学研究費基金 若手研究
Authorship：Principal investigator
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溺死診断におけるプランクトン検査の意義：既成概念の大幅な変革に挑戦する
Grant number：22K19675 2022.04 - 2025.03
独立行政法人日本学術振興会 科学研究費補助金 挑戦的研究(萌芽)
園田 愛、
Authorship：Coinvestigator(s)
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最も少ない労力で行える溺死の補助診断検査：法医実務に合わせた最も効果的な活用法
Grant number：21H03215 2021.04 - 2024.03
独立行政法人日本学術振興会 科学研究費補助金 基盤研究(B)
湯川 修弘、
Authorship：Coinvestigator(s)
Available Technology 【 display / non-display 】
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死後CTから個人識別に有用な特徴的所見を抽出する研究
身元の分かっている胸部X線との比較による身元不明死後CTの個人識別
人工知能を用いた特徴対応異種画像統合法の開発Home Page： 社会医学講座法医学分野
Related fields where technical consultation is available：画像診断、個人識別
Message：共同研究の希望テーマ：画像による個人識別