Updated on 2024/11/22

写真a

 
KOBAYASHI Taichi
 
Organization
University Medical and Dental Hospital Oral Surgery,Radiology and Anesthesia Dental and Oral Radiology Assistant Professor
Title
Assistant Professor
External link

Degree

  • 新大院博（歯） ( 2018.3   新潟大学 )

Research Areas

  • Life Science / Oral pathobiological science  / Oral Radiology

Research History

  • Niigata University   University Medical and Dental Hospital Oral Surgery,Radiology and Anesthesia Dental and Oral Radiology   Assistant Professor

    2019.4

  • Niigata University   Graduate School of Medical and Dental Sciences Oral Life Science Tissue Regeneration and Reconstruction   Assistant Professor

    2018.7 - 2019.3

 

Papers

  • The Relationship between the Contouring Time of the Metal Artifacts Area and Metal Artifacts in Head and Neck Radiotherapy Reviewed

    Kouji Katsura, Satoshi Tanabe, Hisashi Nakano, Madoka Sakai, Atsushi Ohta, Motoki Kaidu, Marie Soga, Taichi Kobayashi, Masaki Takamura, Takafumi Hayashi

    Tomography   9 ( 1 )   98 - 104   2023.1

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    Publishing type：Research paper (scientific journal)   Publisher：MDPI AG  

    (1) Background: The impacts of metal artifacts (MAs) on the contouring workload for head and neck radiotherapy have not yet been clarified. Therefore, this study evaluated the relationship between the contouring time of the MAs area and MAs on head and neck radiotherapy treatment planning. (2) Methods: We used treatment planning computed tomography (CT) images for head and neck radiotherapy. MAs were classified into three severities by the percentage of CT images containing MAs: mild (<25%), moderate (25–75%), and severe (>75%). We randomly selected nine patients to evaluate the relationship between MAs and the contouring time of the MAs area. (3) Results: The contouring time of MAs showed moderate positive correlations with the MAs volume and the number of CT images containing MAs. Interobserver reliability of the extracted MAs volume and contouring time were excellent and poor, respectively. (4) Conclusions: Our study suggests that the contouring time of MAs areas is related to individual commitment rather than clinical experience. Therefore, the development of software combining metal artifact reduction methods with automatic contouring methods is necessary to reducing interobserver variability and contouring workload.

    DOI： 10.3390/tomography9010009

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  • Visual evaluation for the elasticity of suprahyoid muscles using sonographic elastography during tongue pressure measurement in healthy adult subjects: A pilot study

    Sachiko Hayashi-Sakai, Taichi Kobayashi, Takafumi Hayashi, Junko Shimomura-Kuroki, Jun Sakai, Makoto Sakamoto

    Bio-Medical Materials and Engineering   1 - 10   2022.9

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    Publishing type：Research paper (scientific journal)   Publisher：IOS Press  

    BACKGROUND: Suprahyoid muscles behavior during the tongue lifting movement has not yet been elucidated. OBJECTIVE: The purpose of this study was to investigate the potential of elastography imaging to examine developmental oral dysfunction in children and oral hypofunction in older adults using sonography. METHODS: Tongue pressure was measured using a manometer with a probe. The tongue pressure was measured with simultaneously scanning the geniohyoid muscle (GHM) and the anterior belly of the digastric muscle (DGM) using sonographic elastography. Sagittal images of the GHM and coronal images of the DGM were used for the strain ratio measurement. The strain ratio of the muscles was measured three times for each subject with the tongue pressure values of 0–30 kPa. RESULTS: The strain ratio of the GHM were higher than those of the DGM at tongue pressure of 10, 20 and 30 kPa. The strain ratio of the GHM increased as the tongue pressure increased in all participants. In contrast, the strain ratio of the DGM tended to slowly decrease as tongue pressure increased in female participants. CONCLUSION: Sonographic elastography is useful for visual and quantitative evaluation of elastic properties in suprahyoid muscles during tongue lifting movements.

    DOI： 10.3233/bme-221414

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  • 頭頸部放射線治療後のう蝕発生リスク因子に関する検討 Reviewed

    曽我 麻里恵, 勝良 剛詞, 小林 太一, 髙村 真貴, 黒川 亮, 新美 奏恵, 田中 恵子, 石山 茉佑佳, 林 孝文

    歯科放射線   61 ( 2 )   41 - 46   2022.4

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    Language：Japanese   Publishing type：Research paper (scientific journal)  

    DOI： 10.11242/dentalradiology.61.41

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  • 頭頸部放射線治療における金属歯冠修復物対策の経済評価

    勝良 剛詞, 曽我 麻里恵, 小林 太一, 高村 真貴, 林 孝文

    日本歯科医師会雑誌   74 ( 4 )   412 - 412   2021.7

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    Language：Japanese   Publisher：(公社)日本歯科医師会  

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  • 深層学習システムの画像認識過程を人間が理解可能な抽象化過程に近づけることは可能か?

    西山 秀昌, 高村 真貴, 曽我 麻里恵, 小林 太一, 新國 農, 池 真樹子, 勝良 剛詞, 林 孝文

    歯科放射線   61 ( 増刊 )   71 - 71   2021.5

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    Language：Japanese   Publisher：(NPO)日本歯科放射線学会  

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  • 頭頸部放射線治療後のう蝕発生の特徴

    曽我 麻里恵, 勝良 剛詞, 新美 奏恵, 黒川 亮, 小林 太一, 高村 真貴, 田中 恵子, 石山 茉佑佳, 高木 律男, 林 孝文

    歯科放射線   61 ( 増刊 )   46 - 46   2021.5

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    Language：Japanese   Publisher：(NPO)日本歯科放射線学会  

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  • 小唾液腺の口腔内超音波正常像の検討

    曽我 麻里恵, 勝良 剛詞, 西山 秀昌, 小林 太一, 高村 真貴, 林 孝文

    歯科放射線   60 ( 2 )   35 - 41   2021.3

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    Language：Japanese   Publisher：(NPO)日本歯科放射線学会  

    口腔内超音波検査により小唾液腺の口腔内超音波正常像について検討した。口腔乾燥感を含め口腔内に自覚症状のない健常な成人20名(女性13名、男性7名、平均29.4歳)を対象とした。超音波診断装置には、本体としてHIVISION Preirusを、超音波プローブには日常臨床で口腔内超音波走査に使用しているホッケースティック型術中用小型リニアプローブEUP-O54Jを使用した。口唇腺は上下唇とも口腔粘膜直下に一〜二層になって分布が確認された。また、腺葉群の大きさはそれぞれ後方の口角付近の方が大きく、厚みに相当する短径は上唇で平均1.5mm、下唇で2.2mmであった。さらに、血流表示画像において腺葉群内部の血流の確認が可能であり、マイクロスコピーコイルを用いたMRIに近い画像所見を得ることが可能であったと判断された。

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    Other Link： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2021&ichushi_jid=J00567&link_issn=&doc_id=20210406250001&doc_link_id=10.11242%2Fdentalradiology.60.35&url=https%3A%2F%2Fdoi.org%2F10.11242%2Fdentalradiology.60.35&type=J-STAGE&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00007_3.gif

  • 早期舌癌の術前DOI計測におけるCT、MRI、口腔内USの比較

    高村 真貴, 小林 太一, 新國 農, 勝良 剛詞, 山崎 学, 丸山 智, 田沼 順一, 林 孝文

    新潟歯学会雑誌   50 ( 2 )   107 - 107   2020.12

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    Language：Japanese   Publisher：新潟歯学会  

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  • 外部放射線治療における歯科用合金からの後方および側方散乱線の物理学的特徴の解明

    勝良 剛詞, 曽我 麻里恵, 高村 真貴, 小林 太一, 佐久間 英伸, 黒川 亮, 高木 律男, 林 孝文

    日本口腔科学会雑誌   69 ( 2 )   135 - 135   2020.7

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    Language：Japanese   Publisher：(NPO)日本口腔科学会  

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  • ディープラーニングを用いたデンタル画像のマウント位置学習における特徴量について

    西山 秀昌, 高村 真貴, 小林 太一, 曽我 麻里恵, 坂井 幸子, 新國 農, 勝良 剛詞, 林 孝文

    歯科放射線   58 ( 増刊 )   45 - 45   2018.5

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    Language：Japanese   Publisher：(NPO)日本歯科放射線学会  

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  • Ultrasonographic Dynamic Evaluation of Synchronous Motion of the Hyoid Bone and the Mandibular Condyle

    Horiuchi Satoru, Kobayashi Taichi, Ike Makiko, Tanaka Ray, Hayashi Takafumi

    Shika Hoshasen   56 ( 2 )   64 - 69   2017

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    Language：Japanese   Publisher：Japanese Society for Oral and Maxillofacial Radiology  

    <b>Objective</b>: In order to establish a response indicator for predicting the treatment effects of oral appliances in patients with obstructive sleep apnea syndrome, we examine the utility of synchronous real-time dynamic ultrasound monitoring of the motion of the hyoid bone and the mandibular condyle during anterior mandibular movement.<br><b>Materials and methods</b>: Eight healthy volunteers, including three females and five males, were recruited for this study. None of the subjects had a history of sleep-related disorders. The synchronous real-time dynamic monitoring of mandibular protrusion was performed using two ultrasound systems with dedicated intraoperative probes. We measured five consecutive movements of the lateral portion of the mandibular condyle as an indicator of the anterior movement of the mandible and five consecutive movements of the lateral edge of the hyoid body as an indicator of the caudal movement of the hyoid bone.<br><b>Results</b>: The variation coefficient of the response ratio, which was defined as the ratio between hyoid caudal movement and mandibular anterior movement, was smaller than the amount of hyoid caudal movement in every subject. The mean amount of hyoid movement ranged from 2.0mm to 9.0mm, and the mean response ratio ranged from 0.28 to 0.87. The mean variation coefficient ranged from 5.2% to 19.5% for hyoid movement and from 4.6% to 16.1% for the response ratio.<br><b>Conclusion</b>: It was speculated that interpersonal comparisons could be performed using representative individual response ratio values as an indicator of the treatment effects of oral appliances.

    DOI： 10.11242/dentalradiology.56.64

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Books

  • 新・口腔外科はじめましょう

    片倉, 朗（ Role： Contributor）

    デンタルダイヤモンド社  2020.1  （ ISBN:9784885104527 ）

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    Total pages：249p   Language：Japanese

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MISC

  • 培養自家骨膜細胞移植を用いた上顎洞挙上術における歯槽骨再生の評価法としての三次元CT画像解析システムの有用性

    笠原映, 永田昌毅, 小林太一, 山田葵, 林孝文, 冨原圭

    日本口腔科学会学術集会プログラム・抄録集   76th   2022

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  • Discrepancies between imaging and histopathology in the evaluation of invasion depth of oral cancer

    林孝文, 高村真貴, 小林太一, 新國農, 勝良剛詞, 冨原圭, 田沼順一

    日本口腔腫瘍学会誌   34 ( 4 )   2022

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  • 高分子ゲル音響カップリング材を併用した舌癌の口腔内超音波検査による深達度計測

    林孝文, 曽我麻里恵, 小林太一, 高村真貴, 新國農, 勝良剛詞, 丸山智, 田沼順一

    超音波医学   46 ( Suppl. )   S788 - S788   2019.4

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    Language：Japanese  

    J-GLOBAL

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  • 超音波診断装置を用いた骨格性下顎前突症患者の嚥下時舌運動様態の検討

    阿部 遼, 福井 忠雄, 坂上 馨, 小林 太一, 林 孝文, 齋藤 功

    新潟歯学会雑誌   47 ( 2 )   125 - 126   2017.12

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    Language：Japanese   Publisher：新潟歯学会  

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Research Projects

  • アーチファクトを低減した口腔内超音波走査用音響カップリング材の開発

    Grant number：23K16112

    2023.4 - 2025.3

    System name：科学研究費助成事業

    Research category：若手研究

    Awarding organization：日本学術振興会

    小林 太一

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    Grant amount：\4680000 （ Direct Cost: \3600000 、 Indirect Cost：\1080000 ）

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  • A multi-institutional collaborative study on the diagnostic accuracy of the depth of invasion in tongue carcinoma using mobile oral echo

    Grant number：21K10064

    2021.4 - 2024.3

    System name：Grants-in-Aid for Scientific Research

    Research category：Grant-in-Aid for Scientific Research (C)

    Awarding organization：Japan Society for the Promotion of Science

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    Grant amount：\4160000 （ Direct Cost: \3200000 、 Indirect Cost：\960000 ）

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Teaching Experience

  • 歯科診療補助II

    2023
    Institution name：新潟大学

  • 早期臨床実習Ⅱ

    2020
    Institution name：新潟大学

  • 放射線学総論

    2018
    Institution name：新潟大学