Quick Overview
Please note that there are different common names for this artifact.

This artifact appears as a herringbone pattern scattered over the whole image in any direction only on one slice or on multiple slices. The causes of this are many and various, like e.g. electromagnetic spikes created by the gradients, electronic equipment inside the MR procedure room, or fluctuating AC current.

Sometimes it is sufficient to change flickering light bulbs. If the problem increases or keeps on existing, it should be addressed by a service representative.