| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2018: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
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| Outline of Final Research Achievements |
In this study, the spatial resolution of the existing 1.5 T magnetic resonance imaging (MRI) was attempted to be improved from 0.7 mm to 50 μm by accurately analyzing the MRI signal using high-precision signal analysis.
In experiment, MRI measurement data is analyzed by each method; fast Fourier transform (FFT) commonly used for MRI image reconstruction, interpolation method, NHA. MRI images were reconstructed and compared based on the analysis results of each method.From the experimental results, in the MRI image by FFT and interpolation method, the resolution was insufficient, and the sidelobes smoothed out the intensity values, making it impossible to confirm the detailed water distribution. On the other hand, the MRI image by NHA greatly suppressed the occurrence of sidelobes by accurately analyzing the measurement data, and locations that were blocky in the FFT were divided into multiple intensity values.
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