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. Author manuscript; available in PMC: 2021 Jan 5.
Published in final edited form as: J Neurosurg Spine. 2019 Jul 5;31(4):607–615. doi: 10.3171/2019.4.SPINE19178

FIG. 2.

FIG. 2.

Reduction of distortion as one moves from a full FOV EPI (A) to a rectangular FOV with ZOOM-EPI (B). For the parameters used in this work, this “distortion meter” accompanying the trajectories is drawn to scale. kx and ky refer to the x (horizontal) and y (vertical) axes of k-space, an abstract concept for the image space storing raw data obtained by MRI before mathematical processing.