Syrinx-like artifacts on MR images of the spinal cord.
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.
Bronskill
M J
MJ
Department of Medical Biophysics, University of Toronto, Ontario, Canada.
McVeigh
E R
ER
Kucharczyk
W
W
Henkelman
R M
RM
D002574:Cervical Vertebrae / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D013116:Spinal Cord / Q000473:pathology*; D013128:Spinal Osteophytosis / Q000175:diagnosis*; D013595:Syringomyelia / Q000175:diagnosis*