| Project/Area Number |
23890259
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Thoracic surgery
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| Research Institution | Kitasato University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 血流可視化 / 心負荷 / 大動脈弁閉鎖不全症 / 心臓超音波 / 心臓 MRI / 心機能評価 / 心機能 / 心臓MRI / 可視化血流 / 心臓弁膜症 |
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| Research Abstract |
For the development of the cardiac workload evaluation system in elderly patients based on the echocardiography and cardiac MRI, we at first, developed blood flow visualization method using echocardiography and cardiac MRI. Echocardiography VFM (vector flow mapping) has been established and MRI blood flow visualization software has been also created using PC (phase contrast) MRI. From the visualized blood flow velocity vector field, we developed a system to calculate flow energy loss. Then we applied these systems to aortic valve regurgitation cases, and 3 cases were evaluated with echocardiography, and other 3 cases were evaluated with MRI. From the results, flow energy loss caused by the regurgitation jet was proven to be closely related to the flow collision with transmitral flow in the left ventricle.
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