A magnetic resonance (MR) imaging method of detecting and scoring motion artifacts in a magnetic resonance (MR) image of a subject is provided. The method includes calculating a k-space disparity map based at least in part on a first MR signal of the object acquired with the first coil and a second MR signal of the object acquired with the second coil. The method also includes generating a difference graph based on the k-space difference graph, the difference graph including a curve. The method further includes calculating a motion score based on a curve in the difference graph, where the motion score indicates a level of motion artifacts in the image caused by motion of the object during acquisition of the first MR signal and the second MR signal, and the motion score includes an area below the curve. Further, the method includes outputting the motion score.
System and method for automatic detection and scoring of motion artifacts in magnetic resonance imaging