| 摘要 |
PROBLEM TO BE SOLVED: To provide the structure of an MRI device which obtains an image of a high quality without a spurious image and stably avoids receiving noise influence without regard to the installing environment of the device by minimizing the influence of high frequency noise generated by the MRI device itself. SOLUTION: A line filter unit 7 installed in a shield room 1 and a gradient magnetic field power source 8 are integrated and housed in one housing, this housing is fitted to the wall of the shield room and this integrated housing is also electrically integrated with the electromagnetic wave shielding conductor of the shield room. In addition, the integrated housing can incorporate a signal amplifier 9 and a power amplifier 10. A line impedance returning to a noise source through the unit 7 from the noise source is minimized so that the device itself prevents the high frequency noise being the noise source from mixing into the received signal of MRI. Thus, the image of a high quality without a spurious image is obtained. On the other hand, by integrating the housings of a plurality of devices, a device constitution is simplified and an installing area can be reduced.
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