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Numerical simulations of magnetic resonance elastography using finite element analysis with a linear heterogeneous viscoelastic model.
https://repo.qst.go.jp/records/49004
https://repo.qst.go.jp/records/49004eced3f0f-80e0-48ed-b575-7dd493ef1230
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-05-15 | |||||
| タイトル | ||||||
| タイトル | Numerical simulations of magnetic resonance elastography using finite element analysis with a linear heterogeneous viscoelastic model. | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Tomita, Sunao
× Tomita, Sunao× Suzuki, Hayato× Kajiwara, Itsuro× Nakamura, Gen× Jiang, Yu× Suga, Mikio× Obata, Takayuki× Tadano, Shigeru× 菅 幹生× 小畠 隆行 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Magnetic resonance elastography (MRE) is a technique to identify the viscoelastic moduli of biological tissues by solving the inverse problem from the displacement field of viscoelastic wave propagation in a tissue measured by MRI. Because finite element analysis (FEA) of MRE evaluates not only the viscoelastic model for a tissue but also the efficiency of the inversion algorithm, we developed FEA for MRE using commercial software called ANSYS, the Zener model for displacement field of a wave inside tissue, and an inversion algorithm called the modified integral method. The profile of the simulated displacement field by FEA agrees well with the experimental data measured by MRE for gel phantoms. Similarly, the value of storage modulus (i.e., stiffness) recovered using the modified integral method with the simulation data is consistent with the value given in FEA. Furthermore, applying the suggested FEA to a human liver demonstrates the effectiveness of the present simulation scheme. | |||||
| 書誌情報 |
Journal of visualization 巻 21, 号 1, p. 133-145, 発行日 2017-06 |
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| 出版者 | ||||||
| 出版者 | Heidelberg : Springer | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1343-8875 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1007/s12650-017-0436-4 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://link.springer.com/article/10.1007%2Fs12650-017-0436-4 | |||||
| 関連名称 | https://link.springer.com/article/10.1007%2Fs12650-017-0436-4 | |||||
