Tissue Viscoelasticity Imaging Using Vibration and Ultrasound Coupler Gel
説明
<jats:p> In tissue diagnosis, both elasticity and viscosity are important indexes. Therefore, we propose a method for evaluating tissue viscoelasticity by applying vibration that is usually performed in elastography and using an ultrasound coupler gel with known viscoelasticity. In this method, we use three viscoelasticity parameters based on the coupler strain and tissue strain: the strain ratio as an elasticity parameter, and the phase difference and the normalized hysteresis loop area as viscosity parameters. In the agar phantom experiment, using these viscoelasticity parameters, we were able to estimate the viscoelasticity distribution of the phantom. In particular, the strain ratio and the phase difference were robust to strain estimation error. </jats:p>
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 51 (7S), 07GF12-, 2012-07-01
IOP Publishing
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詳細情報 詳細情報について
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- CRID
- 1360847871787201664
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- NII論文ID
- 210000072606
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- ISSN
- 13474065
- 00214922
- http://id.crossref.org/issn/13474065
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- データソース種別
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- Crossref
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