Magnetic resonance imaging apparatus

A magnetic resonance imaging apparatus which forms an image of the spin density distribution associated with relaxation time information within a subject by utilizing a magnetic resonance effect, comprising:

• probe head means for applying a high-frequency magnetic field to the subject and receiving magnetic resonance signals from said subject;
• inclined magnetic field coil means for generating and applying an inclined magnetic field to the subject, so that the magnetic resonance signals detected by the probe head means provide spatial information;
• and
• an electromagnetic coupling prevention member for preventing electromagnetic coupling between the probe head means and the inclined magnetic field coil means, said prevention member including a plurality of high-conductivity portions and a plurality of electrically discontinuous portions electrically separating the high-conductivity portions from one another, wherein said electromagnetic coupling prevention member includes an electrical coupling portion for electrically connecting the high-conductivity;
• and
• wherein said electomagnetic coupling prevention member further includes a substantially cylindrical body having a plurality of slits extending from one end of the body close to the other end, said slits constituting the electrically discontinuous portions, so that the high-conductivity portions are formed at that part of the body divided by the slits, and the electrical coupling portion is formed at the remaining part of the body not divided by the slits.