Abstract: With an examination table device according to an aspect of the present invention, locking of a traveling unit and locking of a top plate are automatically (independently of an operation of a user) are performed in conjunction with connection between the examination table device and a medical image capturing apparatus, so that it is not necessary for the user to perform operations for the locking of the traveling unit and the locking of the top plate in a case of the connection and the connection release. In addition, there is no concern that the traveling unit is not locked due to operation forgetting, the locking release of the top plate is not in time for an operation timing, or the like. Therefore, the locking states of the traveling unit and the top plate can be reliably controlled.

Abstract: Provided are MRI images with excellent image quality and in which the occurrence of artifacts is suppressed by effectively removing a secondary error magnetic field, generated by compensation current (additional current), of eddy current that is caused by applying a gradient magnetic field. The present invention measures and analyzes, in advance, a secondary error magnetic field generated due to the applying of compensation current and saves the results as compensation parameters (secondary compensation parameters), uses the secondary compensation parameters to calculate a correction magnetic field output to be applied to each of a gradient magnetic field coil and a correction coil, and supplies this correction magnetic field output to the gradient magnetic field coil and the correction coil to compensate for (cancel out) the secondary error magnetic field.

Abstract: Provided are MRI images with excellent image quality and in which the occurrence of artifacts is suppressed by effectively removing a secondary error magnetic field, generated by compensation current (additional current), of eddy current that is caused by applying a gradient magnetic field. The present invention measures and analyzes, in advance, a secondary error magnetic field generated due to the applying of compensation current and saves the results as compensation parameters (secondary compensation parameters), uses the secondary compensation parameters to calculate a correction magnetic field output to be applied to each of a gradient magnetic field coil and a correction coil, and supplies this correction magnetic field output to the gradient magnetic field coil and the correction coil to compensate for (cancel out) the secondary error magnetic field.