Development of a simple MR elastography technique
| Project/Area Number |
25461838
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Radiation science
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
Numano Tomokazu 首都大学東京, 人間健康科学研究科, 准教授 (10399511)
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| Co-Investigator(Renkei-kenkyūsha) |
Takamoto Kouichi 富山大学, 医学薬学研究部, 助教 (00553116)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | MRI / MRE / elastography / elastogram / pulse sequence / MR Elastography / Elastography / RF excitation |
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| Outline of Final Research Achievements |
In this work a new MR Elastography (MRE) technique which can be performed on conventional MRI was developed. The authors has reported that a conventional gradient echo type multiecho sequence can be used for a simple MRE sequence as a substitute for a dedicated MRE sequence. To synchronize the vibration with MR imager, we used the first shot of the RF excitation pulse. In fact, we used the TTL signal of the first shot from the RF power amplifier. However, most of the conventional MRI system doesn’t have this TTL output so some modification or current pick up was needed. With this background in mind, the authors has developed that the leak RF signal received via the dipole antenna, in the magnet room was available as the synchronization trigger then any electrical wiring from the MRI electronics is required. The fusion of the simple MRE sequence and the wireless synchronization pneumatic vibration system make it possible to construct the MRE system in any conventional MRI system.
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Report
(4 results)
Research Products
(53 results)
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[Journal Article] Assessment of Human Skeletal Muscle Contraction and Force by Diffusion Tensor Imaging2015
Author(s)
Hata, J. , Nagata, H. , Endo, K. , Komaki, Y. , Sato, M. , Numano, T. and Yagi, K
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Journal Title
Open Journal of Radiology
Volume: 5
Issue: 04
Pages: 189-198
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Presentation] A retrofit technology for MR Elastography2015
Author(s)
T Numano, Y Kawabata, K Mizuhara, T Washio, J Hata and K Homma
Organizer
International Society for Magnetic Resonance in Medicine ISMRM 23th Annual Meeting & Exhibition
Place of Presentation
Toronto, Canada
Year and Date
2015-05-30
Related Report
Int'l Joint Research
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[Presentation] MR-US音速測定法を用いた再生軟骨の非侵襲評価2014
Author(s)
新田尚隆, 兵藤行志, 三澤雅樹, 沼野智一, 白崎芳夫, 林和彦, 本間一弘, 高戸毅, 藤原夕子, 星和人
Organizer
第42回日本磁気共鳴医学会大会
Place of Presentation
ホテルグランヴィア京都 (京都市, 京都府)
Year and Date
2014-09-18 – 2014-09-20
Related Report
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[Presentation] MREの再現性を高める加振パッド固定強度の選択2014
Author(s)
大西孝明, 沼野智一, 伊東大輝, 水原和行, 高本考一, 西条寿夫, 本間一弘
Organizer
第42回日本磁気共鳴医学会大会
Place of Presentation
ホテルグランヴィア京都 (京都市, 京都府)
Year and Date
2014-09-18 – 2014-09-20
Related Report
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[Presentation] 肩部MREを実施するための技術の開発2014
Author(s)
伊東大輝, 沼野智一, 大西孝明, 水原和行, 高本幸一, 西条寿夫, 本間一弘
Organizer
第70回日本放射線技術学会総会学術大会
Place of Presentation
パシフィコ横浜 (横浜市, 神奈川県)
Year and Date
2014-04-10 – 2014-04-13
Related Report
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[Presentation] MREの再現性を高める加振パッドの固定技術2014
Author(s)
大西孝明, 沼野智一, 伊東大輝, 水原和行, 高本幸一, 西条寿夫, 本間一弘
Organizer
第70回日本放射線技術学会総会学術大会
Place of Presentation
パシフィコ横浜 (横浜市, 神奈川県)
Year and Date
2014-04-10 – 2014-04-13
Related Report
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