| 摘要 |
The invention provides an MRI apparatus capable of using a static magnetic filed magnet provided therein as a magnet for polarization, and performing DNP therein without changing a construction of a conventional MRI apparatus. A DNP means placed in the MRI apparatus includes a sample tube, cooling units for cooling and solidifying a sample in the sample tube, a microwave irradiating unit, and a metal tube. At least a member placed near an imaging space (five-gauss line) of the MRI apparatus is made of a nonmagnetic material, and a static magnetic field generating magnet of the MRI apparatus is used as a magnetic field applying means for applying a magnetic field to the sample for polarization. A contrast agent generated by the DNP can be immediately injected into a patient for imaging, so as to provide an image with high S/N.
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