Loading patent…
AssigneeKabushiki Kaisha Toshiba
InventorsDaihachirou Tsuruno, Hiromi Kawamoto, Motohiro Miura
Estimating the term…
In an MR (magnetic resonance) imaging method, not only eddy current field is compensated, but also a gradient field vibrated by a mechanical vibration caused by the eddy current is compensated. The method for imaging a biological body under medical examination by utilizing a magnetic resonance phenomenon under influence of a static magnetic field and a gradient magnetic field to acquire an MR image of a preselected slice portion within the biological body, comprising the steps of: producing a first drive current on which an eddy current field compensating current has been superimposed: producing a vibrating-field compensating current for compensating a gradient field vibrated by the eddy current; and superimposing the vibrating-field compensating current on the first drive current to obtain a second drive current. The second drive current is supplied to a gradient coil assembly for generating a gradient field whose vibrating field component has been compensated.
A method for imaging a biological body under medical examination in an aircore by applying gradient magnetic fields and RF pulses in a static magnetic field to cause a magnetic resonance (MR) for creating an MR image of said biological body on a plane where said magnetic resonance takes place, said gradient magnetic fields being induced by gradient magnetic field generating means which is driven by a first drive current, wherein
A magnetic resonance imaging system for imaging a biological body under medical examination in an aircore:
Dependencies are inferred from the claim text.