| Project/Area Number |
26560253
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Medical systems
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| Research Institution | Gunma University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | せん断波 / エラストグラフィ / 骨格筋 / 組織弾性評価 / 弾性評価 / 超音波映像系 / 超音波映像法 / 伝搬速度計測 |
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| Outline of Final Research Achievements |
For a requirement to evaluate a mechanical properties of muscle including stiffness and the tension of the muscle, a novel shear wave imaging method based on ultrasound color flow imaging system (Color Doppler Shear Wave Imaging: CS-SWI method) is proposed. This method is based on a signal-processing characteristic of color flow Doppler imaging system and the shear wave’s wavefront is directly observed by this method. Although two conditions, shear wave frequency condition and shear wave amplitude condition, are needed to obtain images, these conditions are not severe restriction in most applications. Features of this imaging method are real-time imaging, image quantity and safety to human body compared with the conventional methods. The proposed method is evaluated under the approval of IRB, Gunma University. This experiment is carried out at medical department orthopedics, Gunma University. Shear wave which is propagated in skeletal muscles is clearly reconstructed by this method.
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