| Budget Amount *help |
¥23,660,000 (Direct Cost: ¥18,200,000、Indirect Cost: ¥5,460,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000)
Fiscal Year 2014: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
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| Outline of Final Research Achievements |
In this study, we fabricated high sensitive micro RF coils for small samples and high efficiency micro gradient coils for small magnetic resonance imaging (MRI) apparatus. As a high sensitive micro RF coil, screw shaped micro coils, bicone-shaped micro coils, and spring shaped micro coils were fabricated. By assembling flexible Cu/polyimide substrate onto 3D printed jigs, we fabricated gradient micro coils for a compact MRI system. Since the gradient magnetic field efficiency was 10 times stronger than the hand-winding coils, high resolution MRI image can be expected.
Then the micro RF coils, the gradient micro coils, and an alignment mechanism were integrated as a compact MRI system. As a result, MRI images with voxel size of 50 μm were realized, and we could take MRI images of small samples such as a Xenopus oocyte.
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