Method for reducing translational motion artifacts in MR imaging
 A method is provided for correcting for effects of translational motion or movement of an object in MR imaging. In accordance with the method, an MR point source is joined to the object for translational movement in unison therewith, the point source being maintained in selectively spaced-apart relationship with the object. The method further comprises acquiring a set of k-space data representing images of the object and point source collectively, and deriving a function representing the square of the magnitude of the k-space data set. An inverse Fourier transform operation is applied to the derived function to generate a correlation function with a number of correlation components, a specified one of the correlation components comprising the cross-correlation of the object and the point source. All of the correlation components are then discarded, except for the specified correlation component, which provides an adjusted MR image representing the object from which effects of the translational motion have been substantially eliminated. 
General Electric Company
G
G01R
inventional
Xiaohong Graeme C.
Zhou McKinnon