Fletcher, Yoder & Van Someren
Method and apparatus for producing diffusion weighted MR images
 A technique is provided for generating images on an MRI system in which errors due to gradient pulses are compensated. The errors are identified in advance, such as in a calibration sequence performed on the MRI system. Receiver phase adjustment and logical gradient error values are derived from the identified error values. The calibration sequence may be a modified version of the MRI imaging sequence used to produce the images. The correction values may be based upon corrections at the center of k-space. The technique is particularly useful in compensating for effects of eddy currents in pulse sequences employing high slew rate gradient pulses, such as diffusion weighted echo planar imaging sequences. 
General Electric Company
G
G01R
inventional
Steven J. Xiaohong Hammond Glenn Joseph K.
Huff Zhou Reynolds Maier