Yokoyama Kenichi 横山健一

… Alternative Names

横山健一ヨコヤマケンイチ

YOKOYAMA Kenichi 横山健一

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Researcher Number	20383680
External Links
Affiliation (Current)	2025: 杏林大学, 医学部, 教授
Affiliation (based on the past Project Information) *help	2018 – 2023: 杏林大学, 医学部, 教授 2013: 杏林大学, 医学部, 講師 2004 – 2005: 杏林大学, 医学部, 助手
Review Section/Research Field	Except Principal Investigator Basic Section 52040:Radiological sciences-related / Radiation science / Respiratory organ internal medicine
Keywords	Except Principal Investigator MRI / angiography / Ischemic heart disease / CT / coronary artery / 超解像 / 深層学習 / 冠動脈静止期間 / 冠動脈MRA / SSD … More / object detection / CNN / Deep learning / stationary period / whole heart CMRA / Cine MRI / Cardiac MRI / 造影剤減量 / 被ばく低減 / 高空間分解能 / 深層学習再構成 / 逐次近似再構成 / 超高精細CT / MDCT / ステント / 虚血性心疾患 / 心筋梗塞 / MRA / 冠動脈 / 肺野濃度 / densitometry / 胸部CT / 肺胞蛋白症 Less

Research on high-resolution coronary MRA imaging method using automatic extraction technology of coronary artery stationary period and super-resolution technology
- Principal Investigator
  
  久原重英
- Project Period (FY)
  2022 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 52040:Radiological sciences-related
- Research Institution
  Kyorin University
Image quality improvement and radiation dose reduction in ultrahigh-resolution CT with iterative reconstruction
- Principal Investigator
  
  Machida Haruhiko
- Project Period (FY)
  2018 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 52040:Radiological sciences-related
- Research Institution
  Tokyo Women's Medical University
  Kyorin University
Significance of high-resolution CT findings by using densitometry in patient with pulmonary alveolar proteinosis.
- Principal Investigator
  
  ISHII Haruyuki
- Project Period (FY)
  2011 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Respiratory organ internal medicine
- Research Institution
  Kyorin University
Basic and clinical study of non-invasive coronary examination using MRI and CT
- Principal Investigator
  
  NITATORI Toshiaki
- Project Period (FY)
  2002 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Radiation science
- Research Institution
  Kyorin University

All 2024 2023 2022 2021 2020 2019 2018 2006 2005 2003 2002

All Journal Article Presentation Book

[Book] 心臓・大血管　画像診断の勘ドコロNEO2021
- Author(s)
  横山健一
- Total Pages
  292
- Publisher
  メジカルビュー社
- ISBN
  9784758316156
- Data Source
  KAKENHI-PROJECT-18K07643
[Book] ここから始める循環器疾患のCT・MRI2020
- Author(s)
  7町田治彦、黒木一典、横山健一
- Total Pages
  2
- Publisher
  秀潤社
- Data Source
  KAKENHI-PROJECT-18K07643
[Book] ここから始める循環器疾患のCT・MRI2020
- Author(s)
  町田治彦、西川真木子、横山健一
- Total Pages
  2
- Publisher
  秀潤社
- Data Source
  KAKENHI-PROJECT-18K07643
[Book] ここから始める循環器疾患のＣＴ・ＭＲＩ2020
- Author(s)
  似鳥俊明、横山健一
- Total Pages
  260
- Publisher
  学研メディカル秀潤社
- ISBN
  4780909937
- Data Source
  KAKENHI-PROJECT-18K07643
[Book] 心臓のMRIとCT2005
- Author(s)
  似鳥俊明編著, 高橋修司, 横山健一(分担執筆)
- Total Pages
  248
- Publisher
  南江堂
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14570876
[Journal Article] Direct Extension of IgG4-Related Periarteritis of the Coronary Artery to the Adjacent Myocardium Demonstrated Using Dual-Energy Cardiac Computed Tomography2024
- Author(s)
  Yoshino Yuichi、Goda Ayumi、Shimizu Yuta、Mohri Takato、Takeuchi Shinsuke、Koyama Kohei、Machida Haruhiko、Yokoyama Kenichi、Soejima Kyoko、Kohno Takashi
- Journal Title
  
  Circ J
  
  Volume: 88 Issue: 3 Pages: 434
- DOI
  10.1253/circj.CJ-23-0849
- ISSN
  1346-9843, 1347-4820
- Year and Date
  2024-02-22
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23K07216, KAKENHI-PROJECT-18K07643
[Journal Article] Effect of an Ultrahigh b Value of 3000 s/mm<sup>2</sup> and the Minimal Echo-time on Image Quality and the T2 Shine-through Effect in Diffusion-weighted Imaging of the Liver at 3T: Phantom and Clinical Pilot Studies2023
- Author(s)
  Fukushima Keita、Sano Katsuhiro、Machida Haruhiko、Kariyasu Toshiya、Yoshioka Tatsuya、Takahashi Sanae、Nakanishi Akihito、Kusahara Hiroshi、Yokoyama Kenichi
- Journal Title
  
  MRMS
  
  Volume: 22 Issue: 2 Pages: 232-240
- DOI
  10.2463/mrms.mp.2021-0077
- ISSN
  1347-3182, 1880-2206
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] Pulmonary Artery Aneurysm Diagnosed by Dynamic Digital Chest Radiography2022
- Author(s)
  Shibuya Yukimi、Machida Haruhiko、Yoshiike Shinya、Suda Kazuharu、Tanaka Ryota、Fujiwara Masachika、Yokoyama Kenichi、Kondo Haruhiko
- Journal Title
  
  The Annals of Thoracic Surgery
  
  Volume: 113 Issue: 2 Pages: e87-e90
- DOI
  10.1016/j.athoracsur.2021.04.091
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] Clinical validity of non-contrast-enhanced VI-RADS: prospective study using 3-T MRI with high-gradient magnetic field2022
- Author(s)
  Watanabe Masanaka、Taguchi Satoru、Machida Haruhiko、Tambo Mitsuhiro、Takeshita Yuhei、Kariyasu Toshiya、Fukushima Keita、Shimizu Yuta、Okegawa Takatsugu、Fukuhara Hiroshi、Yokoyama Kenichi
- Journal Title
  
  European Radiology
  
  Volume: 32 Issue: 11 Pages: 7513-7521
- DOI
  10.1007/s00330-022-08813-4
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K07643, KAKENHI-PROJECT-22K09510, KAKENHI-PROJECT-19K09720
[Journal Article] Correlation between CT Value on Lung Subtraction CT and Radioactive Count on Perfusion Lung Single Photon Emission CT in Chronic Thromboembolic Pulmonary Hypertension2022
- Author(s)
  Kariyasu Toshiya、Machida Haruhiko、Yamashiro Tsuneo、Fukushima Keita、Koyanagi Masamichi、Yokoyama Kenichi、Nishikawa Makiko、Satoh Toru
- Journal Title
  
  Diagnostics
  
  Volume: 12 Issue: 11 Pages: 2895-2895
- DOI
  10.3390/diagnostics12112895
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] Denoising using deep-learning-based reconstruction for whole-heart coronary MRA with sub-millimeter isotropic resolution at 3T: a volunteer study2022
- Author(s)
  Toshiya Kariyasu, Haruhiko Machida, Sanae Takahashi, Keita Fukushima, Tatsuya Yoshioka, Kenichi Yokoyama
- Journal Title
  
  Diagn Interv Radiol
  
  Volume: - Issue: 5 Pages: 470-477
- DOI
  10.5152/dir.2022.21291
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] Proposal for a New Vesical Imaging-Reporting and Data System (VI-RADS)-Based Algorithm for the Management of Bladder Cancer: A Paradigm Shift From the Current Transurethral Resection of Bladder Tumor (TURBT)-Dependent Practice2022
- Author(s)
  Taguchi Satoru、Watanabe Masanaka、Tambo Mitsuhiro、Machida Haruhiko、Yokoyama Kenichi、Fukuhara Hiroshi
- Journal Title
  
  Clinical Genitourinary Cancer
  
  Volume: 20 Issue: 4 Pages: e291-e295
- DOI
  10.1016/j.clgc.2022.03.002
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K07643, KAKENHI-PROJECT-22K09510, KAKENHI-PROJECT-19K09720
[Journal Article] 最新CT技術の臨床応用 ─超高精細CTとスペクトラルCTの臨床的有用性─2021
- Author(s)
  町田治彦、志賀久恵、大原有紗、五明美穂、横山健一、西川真木子、苅安俊哉、安達卓哉、清水裕太、新井隆弘、福島啓太、山村亘、小柳正道
- Journal Title
  
  JOURNAL OF THE KYORIN MEDICAL SOCIETY
  
  Volume: 52 Issue: 3 Pages: 123-132
- DOI
  10.11434/kyorinmed.52.123
- NAID
  130008093641
- ISSN
  0368-5829, 1349-886X
- Year and Date
  2021-09-29
- Language
  Japanese
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] Prospective Validation of Vesical Imaging-Reporting and Data System Using a Next-Generation Magnetic Resonance Imaging Scanner?Is Denoising Deep Learning Reconstruction Useful?2021
- Author(s)
  Taguchi Satoru、Tambo Mitsuhiro、Watanabe Masanaka、Machida Haruhiko、Kariyasu Toshiya、Fukushima Keita、Shimizu Yuta、Okegawa Takatsugu、Yokoyama Kenichi、Fukuhara Hiroshi
- Journal Title
  
  Journal of Urology
  
  Volume: 205 Issue: 3 Pages: 686-692
- DOI
  10.1097/ju.0000000000001373
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K07643, KAKENHI-PROJECT-19K09720
[Journal Article] 高性能3テスラMRIの最新技術と臨床応用2021
- Author(s)
  福島啓太、横山健一、町田治彦、苅安俊哉、渡邉正中、五明美穂、高橋沙奈江、齋藤駿、吉岡達也、中西章仁
- Journal Title
  
  JOURNAL OF THE KYORIN MEDICAL SOCIETY
  
  Volume: 52 Issue: 3 Pages: 133-140
- DOI
  10.11434/kyorinmed.52.133
- NAID
  130008093640
- ISSN
  0368-5829, 1349-886X
- Year and Date
  2021-09-29
- Language
  Japanese
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] Image quality and radiologists’ subjective acceptance using model-based iterative and deep learning reconstructions as adjuncts to ultrahigh-resolution CT in low-dose contrast-enhanced abdominopelvic CT: phantom and clinical pilot studies2021
- Author(s)
  Nishikawa Makiko、Machida Haruhiko、Shimizu Yuta、Kariyasu Toshiya、Morisaka Hiroyuki、Adachi Takuya、Nakai Takehiro、Sakaguchi Kosuke、Saito Shun、Matsumoto Saki、Koyanagi Masamichi、Yokoyama Kenichi
- Journal Title
  
  Abdominal Radiology
  
  Volume: 47 Issue: 2 Pages: 891-902
- DOI
  10.1007/s00261-021-03373-5
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] VI-RADSの基本と最新MRI装置による新たな撮像法2021
- Author(s)
  渡邉正中, 町田治彦, 田口慧, 多武保光宏, 苅安俊哉, 竹下祐平, 福島啓太, 斎藤駿, 福原浩, 横山健一
- Journal Title
  
  映像情報Medical
  
  Volume: 53 Pages: 14-20
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] Emergent transcatheter arterial embolization to control critical blood pressure fluctuation associated with hypercatecholaminemic crisis in a patient with an unruptured retroperitoneal paraganglioma2021
- Author(s)
  Kariyasu Toshiya、Machida Haruhiko、Nishina Yoshio、Tambo Mitsuhiro、Miyagawa Shogo、Rakue Takayuki、Sumitani Yoshikazu、Yasuda Kazuki、Shibahara Junji、Yokoyama Kenichi
- Journal Title
  
  Radiology Case Reports
  
  Volume: 16 Issue: 8 Pages: 2065-2071
- DOI
  10.1016/j.radcr.2021.05.018
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] Improved image quality of temporal bone CT with an ultrahigh-resolution CT scanner: clinical pilot studies2020
- Author(s)
  Ohara Arisa、Machida Haruhiko、Shiga Hisae、Yamamura Wataru、Yokoyama Kenichi
- Journal Title
  
  Japanese Journal of Radiology
  
  Volume: - Issue: 9 Pages: 878-883
- DOI
  10.1007/s11604-020-00987-5
- NAID
  50014592599
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] 杏林大学医学部付属病院におけるSpectral CT臨床活用の実際2020
- Author(s)
  町田治彦、西川真木子、志賀久恵、苅安俊哉、横山健一、清水裕太、安達卓哉、松島紗織、小柳正道、中西章仁
- Journal Title
  
  インナービジョン
  
  Volume: 35 Pages: 22-26
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] Improved delineation of CT virtual bronchoscopy by ultrahigh-resolution CT: comparison among different reconstruction parameters2020
- Author(s)
  Adachi Takuya、Machida Haruhiko、Nishikawa Makiko、Arai Takahiro、Kariyasu Toshiya、Koyanagi Masamichi、Yokoyama Kenichi
- Journal Title
  
  Japanese Journal of Radiology
  
  Volume: - Issue: 9 Pages: 884-889
- DOI
  10.1007/s11604-020-00972-y
- NAID
  50014592600
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] Clinical applications of digital angiography with the harmonization function in body interventional radiology2020
- Author(s)
  Tateishi Hidekatsu、Kuroki Kazunori、Machida Haruhiko、Iwamoto Toshihiko、Kariyasu Toshiya、Kinoshita Yuusuke、Watanabe Masanaka、Shiga Hisae、Yuda Saori、Yokoyama Kenichi
- Journal Title
  
  Japanese Journal of Radiology
  
  Volume: - Issue: 10 Pages: 922-933
- DOI
  10.1007/s11604-020-00990-w
- NAID
  50014626216
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] Effect of Ultra High-Resolution Computed Tomography and Model-Based Iterative Reconstruction on Detectability of Simulated Submillimeter Artery2020
- Author(s)
  Morisaka Hiroyuki、Shimizu Yuta、Adachi Takuya、Fukushima Keita、Arai Takahiro、Yamamura Wataru、Koyanagi Masamichi、Kariyasu Toshiya、Machida Haruhiko、Sano Katsuhiro、Yokoyama Kenichi、Ichikawa Tomoaki
- Journal Title
  
  Journal of Computer Assisted Tomography
  
  Volume: 44 Issue: 1 Pages: 32-36
- DOI
  10.1097/rct.0000000000000963
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] 大動脈－CTによる大動脈瘤・大動脈解離の経過観察のポイント－2020
- Author(s)
  沈金花、町田治彦、志賀久恵、横山健一
- Journal Title
  
  臨床画像
  
  Volume: 36 Pages: 622-632
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] 心大血管病変　辺縁に注目する2019
- Author(s)
  奥田俊、町田治彦、西川真木子、苅安俊哉、横山健一
- Journal Title
  
  臨床画像
  
  Volume: 35 Pages: 1420-1431
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] 心疾患の包括的評価2019
- Author(s)
  志賀久恵、町田治彦、辺泰樹、横山健一
- Journal Title
  
  胸部外科
  
  Volume: 72 Pages: 946-953
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] Clinical impact of visceral-to-subcutaneous fat ratio in patients with acute aortic dissection2019
- Author(s)
  Miura Yusuke、Higuchi Satoshi、Matsushita Kenichi、Kariyasu Toshiya、Machida Haruhiko、Yokoyama Kenichi、Soejima Kyoko、Satoh Toru
- Journal Title
  
  PLOS ONE
  
  Volume: 14 Issue: 12 Pages: e0226642-e0226642
- DOI
  10.1371/journal.pone.0226642
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] 胸部X線写真　心大血管病変2019
- Author(s)
  西川真木子、町田治彦、渡邉正中、立石秀勝、苅安俊哉、横山健一、辺泰樹
- Journal Title
  
  臨床画像
  
  Volume: 35 Pages: 50-64
- Data Source
  KAKENHI-PROJECT-18K07643
[Journal Article] Efficacy of cardiac MRI in the evaluation of ischemic heart disease2006
- Author(s)
  KenichiYokoyama, Toshiaki Nitatori
- Journal Title
  
  Magnetic resonance in medical sciences 5
  
  Pages: 33-40
- NAID
  10019168604
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14570876
[Journal Article] Efficacy of cardiac MRI in the evaluation of ischemic heart disease2006
- Author(s)
  Kenichi Yokoyama, Toshiaki Nitatori, et al.
- Journal Title
  
  Magnetic resonance in medical sciences 5
  
  Pages: 33-40
- NAID
  10019168604
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14570876
[Journal Article] 心筋梗塞巣の検出におけるparallel imaging併用三次元心筋遅延造影MRIの有用性2005
- Author(s)
  鈴木清寿, 似鳥俊明, 横山健一, 高橋修司
- Journal Title
  
  日本学放射線学会誌 65/
  
  Pages: 114-120
- NAID
  120004850293
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14570876
[Journal Article] 心筋梗塞巣の検出におけるparallel imaging併用三次元心筋遅延造影MRIの有用性2005
- Author(s)
  鈴木清寿, 似鳥俊明, 横山健一, 高橋修司
- Journal Title
  
  日本医学放射線学会誌 65/2
  
  Pages: 114-120
- NAID
  120004850293
- Data Source
  KAKENHI-PROJECT-14570876
[Journal Article] MRIによる心臓の機能診断2005
- Author(s)
  横山健一, 高橋修司, 似鳥俊明
- Journal Title
  
  日獨医報 50;
  
  Pages: 320-328
- Data Source
  KAKENHI-PROJECT-14570876
[Journal Article] MRIによる心臓の機能診断2005
- Author(s)
  横山健一, 高橋修司, 似鳥俊明
- Journal Title
  
  日獨医報 50
  
  Pages: 320-328
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14570876
[Journal Article] 多裂検出器CTによる冠動脈狭窄診断の有用症例について2003
- Author(s)
  高橋修司, 似鳥俊明, 横山健一, 鈴木清寿, 蜂屋順一
- Journal Title
  
  臨床放射線 48
  
  Pages: 395-399
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14570876
[Journal Article] V領域別MRIの最新動向 2 心臓1)冠動脈MRAの撮像テクニック2003
- Author(s)
  横山健一, 似鳥俊明, 高橋修司, 鈴木清寿, 蜂屋順一
- Journal Title
  
  INNERVISION 18
  
  Pages: 10-13
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14570876
[Journal Article] 最新のParallel imaging : 冠動脈MRAにおけるParallel Imagingの応用2003
- Author(s)
  横山健一, 似鳥俊明, 蜂屋順一
- Journal Title
  
  映像情報メディカル 35
  
  Pages: 42-45
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14570876
[Journal Article] 三次元画像診断 : MRI・冠動脈2003
- Author(s)
  横山健一, 似鳥俊明, 蜂屋順一
- Journal Title
  
  総合臨床 52
  
  Pages: 1594-1598
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14570876
[Journal Article] 冠動脈2002
- Author(s)
  横山健一, 似鳥俊明, 高橋修司, 鈴木清寿, 蜂屋順一
- Journal Title
  
  臨床画像 18
  
  Pages: 969-969
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14570876
[Journal Article] Murlti-detector CTによる冠動脈描出能および狭窄病変に対する診断能の検討2002
- Author(s)
  高橋修司, 似鳥俊明, 横山健一, 蜂屋順一, 加地英生, 吉野秀朗
- Journal Title
  
  日本医学放射線学会誌 62
  
  Pages: 808-815
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14570876
[Journal Article] X線CT,MRIによる冠動脈の描出2002
- Author(s)
  似鳥俊明, 横山健一, 高橋修司, 蜂屋順一
- Journal Title
  
  Medicina 39
  
  Pages: 1566-1568
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14570876
[Journal Article] Detection and Diagnosis of coronary arteries using multi-detector CT2002
- Author(s)
  Syuji Takahashi, Toshiaki Nitatori, Kenichi Yokoyama, et al.
- Journal Title
  
  Nippon Acta Radiologica 62
  
  Pages: 808-815
- NAID
  120004853003
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14570876
[Presentation] Clinical feasibility assessment of model-based iterative and deep learning reconstructions on quality and subjective acceptance of low-dose postcontrast abdomen-pelvis CT by ultrahigh-resolution CT2020
- Author(s)
  Nishikawa M, Machida H, Kariyasu T, Shimizu Y, Koyanagi M, Yokoyama K
- Organizer
  The Annual Meeting of the European Congress of Radiology 2020
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K07643
[Presentation] Comparison of Image Quality and Subjective Acceptance in Abdominal CT By Ultrahigh-resolution CT at Different Radiation Doses Between Model-based Iterative and Deep Learning Reconstructions: Phantom and Clinical Pilot Studies2019
- Author(s)
  Shimizu Y, Machida H, Nisihikawa M, Morisaka H, Adachi T, Kariyasu T, Sano K, Saito S, Nakai T, Sakaguchi K, Matsumoto S, Koyanagi M, Nakanishi A, Yokoyama K
- Organizer
  Radiology Society of North Amerika (RSNA) 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K07643
[Presentation] Advanced image reconstruction algorithms for ultra-high-resolution CT images: clinical usefulness of model-based iterative reconstruction and deep learning reconstruction.2019
- Author(s)
  Nakai T, Machida H, Kariyasu T, Koyanagi M, Takaku H, Okuda S, Katase S, Nakanishi A, Yokoyama K.
- Organizer
  第25回欧州放射線学会（ECR 2019）
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K07643
[Presentation] Ultra-high-resolution CT with model-based iterative reconstruction improves delineation of the hepatic arteries, pancreaticoduodenal arcade, and biliary and pancreatic ducts2019
- Author(s)
  Nishikawa M, Machida H, Sano K, Kariyasu T, Katase S, Tateishi H, Yokoyama K
- Organizer
  The 78th Annual Meeting of the Japan Radiological Society 2019
- Data Source
  KAKENHI-PROJECT-18K07643
[Presentation] Current imaging techniques and clinical applications of CT angiography of the lower extremities: what the radiologist and radiographer need to know.2019
- Author(s)
  Takaku H, Machida H, Kariyasu T, Koyanagi M, Nakai T, Okuda S, Katase S, Nakanishi A, Yokoyama K.
- Organizer
  第25回欧州放射線学会（ECR 2019）
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K07643
[Presentation] Improved Delineation of Brain Perforating Arteries in Brain CTA by Ultra High-Resolution CT: What the Radiologist and Radiology Technologist Need to Know2019
- Author(s)
  Shimizu Y, Machida H, Gomyo M, Kariyasu T, Adachi T, Arai T, Yamamura W, KoyanagiM, Nakanisi A, Yokoyama K
- Organizer
  Radiology Society of North Amerika (RSNA) 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K07643
[Presentation] 超高精細CTを用いた頭部3D-CTAにおける2048 matrix画像のトリミング再構成法の有用性.2019
- Author(s)
  新井隆弘，五明美穂，土屋一洋，小柳正道，安達卓哉，清水裕太，中西章仁，横山健一.
- Organizer
  第42回日本脳神経CI学会総会
- Data Source
  KAKENHI-PROJECT-18K07643
[Presentation] Clinical Impacts of Ultra-high-resolution CT Combined with Iterative Reconstruction Algorithm.2018
- Author(s)
  Kinoshita Y, Machida H, Koyanagi M, Kariyasu T, Tateishi H, Gomyo M, Ohara A, Hayashi M, Katase S, Yokoyama K.
- Organizer
  第77回日本医学放射線学会総会
- Data Source
  KAKENHI-PROJECT-18K07643
[Presentation] Lung Subtraction Imaging by Single-energy CT for Evaluation of Chronic Thromboembolic Pulmonary Hypertension Before and After Balloon Pulmonary Angioplasty.2018
- Author(s)
  Kariyasu T, Machida H, Koyanagi M, Fukushima K, Nishikawa M, Yamamura W, Arai T, Takahashi S, Shimizu Y, Shimomiya Y, Tsuboi M, Satoh T, Yokoyama K.
- Organizer
  第104回北米放射線学会（RSNA 2018）
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K07643
[Presentation] Real World Opened by State-of-the-art 2048-matrix CT2018
- Author(s)
  Koyanagi M, Kariyasu T, Machida H, Yamamura W, Adachi T, Shimizu Y, Fukushima K, Nakanishi A, Yokoyama K.
- Organizer
  第104回北米放射線学会（RSNA 2018）
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K07643
[Presentation] Temporal Bone CT Evaluation of Middle Ear Cholesteatoma Using Ultra-high-resolution CT.2018
- Author(s)
  Ohara A, Machida H, Shiga H, Yamamura W, Arai T, Adachi T, Koyanagi M, Gomyo M, Hayashi M, Yokoyama K.
- Organizer
  第77回日本医学放射線学会総会
- Data Source
  KAKENHI-PROJECT-18K07643
[Presentation] Clinical Usefulness of Ultra-high-resolution CT and Iterative Reconstruction for CT Virtual Bronchoscopy.2018
- Author(s)
  Nishikawa M, Machida H, Adachi T, Arai T, Yamamura W, Koyanagi M, Oda M, Kariyasu Y, Nitatori T, Yokoyama K.
- Organizer
  第77回日本医学放射線学会総会
- Data Source
  KAKENHI-PROJECT-18K07643
[Presentation] Usefulness of Ultra-high-resolution CT for Improving Image Quality in Temporal Bone CT.2018
- Author(s)
  Shiga H，Machida H，Ohara A，Gomyo M，Kinoshita Y，Yamamura W，Arai T，Adachi T，Koyanagi M，Yokoyama K.
- Organizer
  第77回日本医学放射線学会総会
- Data Source
  KAKENHI-PROJECT-18K07643
[Presentation] Improved three-dimensional CT image quality of high contrast anatomies with an ultra-high-resolution CT scanner: initial clinical experience.2018
- Author(s)
  Machida H, Kuroki K, Adachi T, Yamamura W, Shiga H, Ohara A, Yokoyama K.
- Organizer
  Progress in Radiology 2018 (The 12th Symposium of the Japanese Scandinavian Radiological Society & the 15th Nordic Japan PACS Symposium)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K07643
[Presentation] Demonstration of perforating arteries by ultra-high-resolution CT angiography.2018
- Author(s)
  Gomyo M, Tsuchiya K, Machida H, Katase S, Ohara A, Tateishi H, Koyanagi M, Adachi T, Arai T, Yokoyama K.
- Organizer
  第77回日本医学放射線学会総会
- Data Source
  KAKENHI-PROJECT-18K07643
[Presentation] Clinical usefulness of combined use of ultra-high-resolution CT and iterative reconstruction in CT virtual bronchoscopy.2018
- Author(s)
  Adachi T, Machida H, Nishikawa M, Arai T, Yamamura W, Koyanagi M, Shimizu Y, Nakai T, Kariyasu T, Nakanishi A, Yokoyama K.
- Organizer
  第104回北米放射線学会（RSNA 2018）
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K07643

1. ISHII Haruyuki (30406970)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
2. NAKATA Koh (80207802)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. TAZAWA Ryushi (70301041)

# of Collaborated Projects: 1 results

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4. NITADORI Toshiaki (80137512)

# of Collaborated Projects: 1 results

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5. GOTO Hajime (80134617)

# of Collaborated Projects: 1 results

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6. HIRAOKA Sayuki (20458871)

# of Collaborated Projects: 1 results

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7. NITATORI Toshiaki (90228247)

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8. Machida Haruhiko (70439834)

# of Collaborated Projects: 1 results

# of Collaborated Products: 36 results
9. 高橋修司 (40256946)

# of Collaborated Projects: 1 results

# of Collaborated Products: 20 results
10. 高原太郎 (50308467)

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11. 久原重英 (60781234)

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12. 竹内純一 (80432871)

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13. 天沼誠 (10212565)

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14. 芝生春菜 (20784606)

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15. 遠藤祐太 (80845016)

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16. 小林邦典 (90723867)

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17. 横山建一

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# of Collaborated Products: 12 results
18. 似島俊明

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# of Collaborated Products: 15 results

Yokoyama Kenichi 横山 健一

横山 健一 ヨコヤマ ケンイチ

YOKOYAMA Kenichi 横山 健一

Research Projects

Research Products

Co-Researchers

Research on high-resolution coronary MRA imaging method using automatic extraction technology of coronary artery stationary period and super-resolution technology

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Image quality improvement and radiation dose reduction in ultrahigh-resolution CT with iterative reconstruction

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Significance of high-resolution CT findings by using densitometry in patient with pulmonary alveolar proteinosis.

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Basic and clinical study of non-invasive coronary examination using MRI and CT

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[Book] 心臓・大血管 画像診断の勘ドコロNEO2021

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[Book] ここから始める循環器疾患のCT・MRI2020

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[Book] ここから始める循環器疾患のCT・MRI2020

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[Book] ここから始める循環器疾患のＣＴ・ＭＲＩ2020

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[Book] 心臓のMRIとCT2005

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[Journal Article] Direct Extension of IgG4-Related Periarteritis of the Coronary Artery to the Adjacent Myocardium Demonstrated Using Dual-Energy Cardiac Computed Tomography2024

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[Journal Article] Effect of an Ultrahigh b Value of 3000 s/mm<sup>2</sup> and the Minimal Echo-time on Image Quality and the T2 Shine-through Effect in Diffusion-weighted Imaging of the Liver at 3T: Phantom and Clinical Pilot Studies2023

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[Journal Article] Pulmonary Artery Aneurysm Diagnosed by Dynamic Digital Chest Radiography2022

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[Journal Article] Clinical validity of non-contrast-enhanced VI-RADS: prospective study using 3-T MRI with high-gradient magnetic field2022

Author(s)

Yokoyama Kenichi 横山健一

横山健一ヨコヤマケンイチ

YOKOYAMA Kenichi 横山健一

[Book] 心臓・大血管　画像診断の勘ドコロNEO2021