Development of new MR Elastography pulse sequence

2013 Fiscal Year Final Research Report

• Project/Area Number: 23791399
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Radiation science
• Research Institution: The University of Tokyo
• Principal Investigator: HATA Junichi 東京大学, 医学部附属病院, その他 (00568868)
• Research Collaborator: YAGI Kazuo 首都大学東京, 教授 (50201819) ; NUMANO Tomokazu 首都大学東京, 准教授 (10399511) ; SUZUKI Yuichi 東京大学, 医学部附属病院, 診療放射線技師 (70420221)
• Project Period (FY): 2011 – 2013
• Keywords: MRI / Pulse Sequence / Elastography / Skeletal Muscle / 硬さ / 運動機能

Research Abstract

The aim of this study is to improvement and evaluation of novel MR Elastography : MRE (i.e. technique for imaging as for the elasticity of the organization using magnetic resonance). We found the weak point of MRE imaging. And, its pulse sequence system has been improved. The characteristic of the lower skeletal muscle was evaluated by the improved pulse sequence. As content, the skeletal muscle motor function and anisotropy was evaluated by elasticity.

Research Products

• [Journal Article] Characteristics of diffusion-weighted stimulated echo pulse sequence in human skeletal muscle (2013)
  • Author(s): Hata J, Yagi K, Hikishima K, Numano T, Goto M, Yano K.
  • Journal Title: Radiological physics and technology Volume: vol.6 No.1 Pages: p92-97
  • Peer Reviewed
• [Journal Article] Diffusion fractional anisotropy-based transformation in skeletal muscle caused by pressure (2012)
  • Author(s): Hata J, Yagi K, Hikishima K, Komaki Y, Goto M, Yano K.
  • Journal Title: Magnetic resonance in medical sciences Volume: vol.11 No.3 Pages: p179-184
  • Peer Reviewed
• [Journal Article] MR Elastographyを用いた筋収縮による硬度変化の計測 (2012)
  • Author(s): 畑純一,沼野智一,水原和行,鷲尾利克,高本孝一,片桐秀樹,西条寿夫,本間一弘,八木一夫,矢野敬一
  • Journal Title: 日本磁気共鳴医学会雑誌[大会長賞記録] Volume: vol.32 No.1 Pages: p10-15
• [Presentation] Analysis of the Stiffness Anisotropy Structure using MR Elastography in the Skeletal Muscle (2013)
  • Author(s): J unichi Hata, Tomokazu Numano, Kazuyuki Mizuhara, Toshikatu Washio, Kouichi Takamoto, Kazuhiro Homma, Kazuo Yagi, Keichi Yano, Kuni Ohtomo
  • Organizer: Scientific Meeting &Exhibition ISMRM, vol.21
  • Place of Presentation: Salt Lake City, United America
  • Year and Date: 20130400
• [Presentation] Simple MR Elastography : A Gradient-Echo Type Multiecho MR Sequence (2013)
  • Author(s): Tomokazu Numano, J unichi Hata, Kazuyuki Mizuhara, Kouichi Takamoto, Toshikatu Washio, Hisao Nishijo, Kazuo Yagi, Kazuhiro Homma
  • Organizer: Scientific Meeting &Exhibition ISMRM, vol.21
  • Place of Presentation: Salt Lake City, United America
  • Year and Date: 20130400
• [Presentation] MR Elastographyによる筋組織異方構造の解析 (2012)
  • Author(s): 畑純一,沼野智一,水原和行,高本孝一,鷲尾利克,西条寿夫,本間一弘,八木一夫,矢野敬一
  • Organizer: 日本磁気共鳴医学会(JSMRM)
  • Year and Date: 2012-10-01
• [Presentation] 数値シミュレーションによるSTEAMの有用性 (2012)
  • Author(s): 畑純一
  • Organizer: 日本放射線技術学会東京部会春季大会
  • Year and Date: 2012-05-19
• [Presentation] MR Elastographyを用いた筋収縮による硬度変化の計測 (2011)
  • Author(s): 畑純一,沼野智一,水原和行,鷲尾利克,高本孝一,片桐秀樹,西条寿夫,本間一弘,八木一夫,矢野敬一
  • Organizer: 日本磁気共鳴医学会(JSMRM)
  • Year and Date: 2011-10-01
• [Presentation] MR Elastographyに影響を与える因子 (2011)
  • Author(s): 畑純一,沼野智一,八木一夫,高本孝一,西条寿夫,飯田恭人,矢野敬一
  • Organizer: 日本放射線技術学会総会学術大会
  • Year and Date: 2011-04-09