Herringbone artifact

Herringbone artifact, also known as spike artifact, crisscross artifact, or corduroy artifact, is an MRI artifact related to one or few aberrant data point(s) in k-space. In image space, the regularly spaced stripes resemble the appearance of a fabric with a herringbone pattern. The artifact covers the entire image in a single slice or multiple slices.

Causes

  • electromagnetic spikes by gradient coils
  • fluctuating power supply
  • RF pulse discrepancies

Differential diagnosis

  • zipper artifact
    • perpendicular to the frequency encoding direction
    • less uniform
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