Faculty of Medicine College Hospital Department of radiology


Assistant Professor

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  • Study on nasal breathing in transnasal endoscopy: examination of frequency of discovering brownish area of esophagus

    ONOE Koji, YAMADA Hiroki, SHINKAWA Ninako, MIYAZAKI Takahiro

    Nihon Shoukaki Gan Kenshin Gakkai zasshi   advpub ( 0 )   2024

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japanese Society of Gastrointestinal Cancer Screening  

    Objective: It has been reported that nasal breathing instead of mouth breathing during transnasal endoscopy reduces pharyngeal reflexes and improves tolerability of examinees. To determine whether recommendation of nasal breathing improves tumor detection rates, we compared the detection rates of esophageal browning, which is more frequent and widely used as a useful finding indicative of esophageal and pharyngeal cancer, between a control group not recommended nasal breathing and a group recommended such breathing. Subjects and Methods: We included 4,560 transnasal endoscopy examinations: 3,244 in the control group (2,042 males and 1,202 females, mean age: 54.7) and 1,316 in the nasal breathing group (821 males and 495 females, mean age 54.8) examined by the same three endoscopists using three endoscopes in both groups between 1 August 2020 and 31 January 2023. The brownish area was detected via image-enhanced endoscopic observation. Results: Up to 21 June 2022, 3,244 patients were examined without nasal breathing being recommended, and 52 people had a spotted brownish area (detection rate: 1.6%). On the other hand, after 21 June 2022, 1,316 patients were examined with nasal breathing being recommended, and 40 people had a brownish area (detection rate: 3.0%), showing a significant difference between the two groups. There was no significant difference in the frequency of discovering brownish areas between different endoscope models. Conclusion: Recommendation of nasal breathing in transnasal endoscopy is expected to contribute to the early detection of esophageal cancer with a high detection rate of a brown esophageal area.

    DOI: 10.11404/jsgcs.23005

    CiNii Research

  • A clear presentation of intracranial hypostasis on PMCT

    Shinkawa N., Imada M., Azuma M., Shinkawa N., Yukawa N.

    Journal of Forensic and Legal Medicine   97   102540   2023.7

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Journal of Forensic and Legal Medicine  

    Intracranial hypostasis is a common postmortem change evident on postmortem CT (PMCT), but can be readily misinterpreted as subdural hematoma by inexperienced physicians. Although PMCT is necessarily lacking contrast enhancement, we reconstructed hypostatic sinuses into three-dimensional images resembling the results of in vivo venography. This simple methodology facilitates easy recognition of intracranial hypostasis.

    DOI: 10.1016/j.jflm.2023.102540



  • Carbohydrate antigen 19-9-producing splenic cyst: a case report

    Shinkawa N., Horinouchi H., Shinkawa N., Imamura N., Fukushima T.

    Radiology Case Reports   17 ( 1 )   19 - 22   2022.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Radiology Case Reports  

    We describe the case of a 40s woman with a carbohydrate antigen (CA)19-9-producing splenic cyst. The lesion was detected incidentally at the splenic hilum, and resected after 5 years of follow-up. Size of the lesion was enlarged from 1.6 cm to 5.3 cm, and serum CA19-9 was elevated from the normal range to 1766 U/ml. Microscopically, CA19-9-producing splenic cyst was diagnosed. It was mimicked pancreatic malignancy due to its location at the splenic hilum. Benign lesions with elevated serum CA19-9 also to be differential diagnosis.

    DOI: 10.1016/j.radcr.2021.09.063



  • 検診発見食道癌の検討 Reviewed


    宮崎県医師会医学会誌   45 ( 2 )   158 - 164   2021.9

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:宮崎県医師会  

  • ピロリ菌未感染胃癌5症例の検診内視鏡画像 ~病変を見過ごさないために~ Reviewed


    宮崎県医師会医学会誌   45 ( 2 )   176 - 182   2021.9

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:宮崎県医師会  

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MISC 【 display / non-display



    画像診断   37 ( 3 )   351 - 351   2017.2

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)   Publisher:秀潤社  

Presentations 【 display / non-display

  • 血清CA19-9高値を示した脾嚢胞の1例

    堀之内裕美、新川仁奈子、川野真嗣、榮 建文、福島 剛、今村直哉


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    Event date: 2021.2.7

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 胃がんリスク評価(ABC分類)受診後の内視鏡検査受診勧奨は有効か?

    尾上耕治、宮﨑貴浩、北村 亨、稲倉琢也、山田浩己、新川仁奈子、遠藤公彦、平井俊範


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    Event date: 2018.9.15

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 内視鏡的治療を行った健診発見印環細胞癌の2例

    尾上耕治、北村 亨、稲倉琢也、新川仁奈子、山田浩己、宮﨑貴浩、吉山一浩、林 透


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    Event date: 2017.9.30

    Language:Japanese   Presentation type:Oral presentation (general)  

  • Fat Quantification of Adrenal Masses Using 3D 6-point Dixon MR Imaging: Intermodality Agreement and Interobserver Reproducibility Study

    Shinkawa N, Naminoto, Shimomura M, Shinkawa N, Yamashita Y, Hirai T


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    Event date: 2017.4.13 - 2017.4.16

    Language:Japanese   Presentation type:Oral presentation (general)  

  • MRIで診断し得た膀胱傍神経節腫の1例

    下村 明、新川慶明、新川仁奈子、寺田珠沙、水谷陽一、古小路英二、榮 建文、長町茂樹、平井俊範


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    Event date: 2017.1.18

    Language:Japanese   Presentation type:Oral presentation (general)  

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