Unshielded electric components in the magnet room will excite RF noise artifacts (interference) in different variations. RF 'buzz' will be seen over a range of frequencies on the images. The artifact runs in frequency encoding direction.

Take care to use only MR compatible (special shielded) devices.

See also MR Compatibility.

Quick Overview

The saturation effect of inflowing blood in 3D inflow MRA.

Smaller 3D Volume or scans with e.g. tilt optimized nonsaturated excitation. In multi chunk scans TONE decreases this artifact or allows thicker chunks.

Quick Overview

Missing or zero filled data in k-space can cause artifacts from anomalies to zebra stripes.

Change the sequence parameters or try to use a surface coil. If the problem persists, it must be addressed by a service representative.

Quick Overview

Zipper artifacts appear as dashed lines. There are various causes for this MRI artifact.
Most of zipper artifacts result from inhomogeneities of the magnetic field caused by interferences with radio frequency from various sources ('your radio is working in the scanner room means your shielding is not working'). Software and equipment problems can also cause zipper lines in both directions.

Scanning room door during the acquisition of images is closed, shielding is working, and all disturbing devices are removed?

See also Room Shielding, Active Shielding, Radio Frequency Shielding.