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Syrinx-like artifacts on MR images of the spinal cord
M J Bronskill1, E R McVeigh, W Kucharczyk
1Department of Medical Biophysics, University of Toronto, Ontario, Canada.
Radiology
|February 1, 1988
Abstract:
Magnetic resonance (MR) imaging of the spinal cord frequently demonstrates, especially on sagittal sections, a central stripe that mimics a true syrinx. This syrinx-like manifestation of a truncation artifact occurs in objects having a width of only a few pixels and was demonstrated by calculations verified with phantom MR images. Healthy volunteers and two patients with a syrinx and cervical spondylosis, respectively, underwent MR imaging. By increasing the number of phase-encoding steps, decreasing the field of view, and switching phase- and frequency-encoding axes, the syrinx-like artifact can be eliminated.