Herringbone artifact
Herringbone
artifact • Corduroy (photo) - Ganzer Fall bei Radiopaedia
Herringbone
artifact • Herringbone MRI artifact - Ganzer Fall bei Radiopaedia
Herringbone
artifact • Herringbone artifact - Ganzer Fall bei Radiopaedia
Herringbone
artifact • Meningioma of the cerebellopontine angle - Ganzer Fall bei Radiopaedia
MRI artifacts
• Herringbone artifact - Ganzer Fall bei Radiopaedia
nicht verwechseln mit: Corduroy-Zeichen (Wirbelkörperhämangiom)
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
Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu Corduroy-Artefakt: