What Is a Susceptibility Artifact

Magnetic susceptibility artifacts (or just susceptibility artifacts) refer to a variety of MRI artifacts that share distortions or local signal change due to local magnetic field inhomogeneities from a variety of compounds.

How can an artifact reduce susceptibility?

Susceptibility artifacts can be minimized by taking advantage of the directionality of the susceptibility gradients. Aligning the phase-encoding gradient with the strongest susceptibility gradients reduces the effect of local magnetic field changes in the more sensitive frequency-encoding direction.

What is artifact in human body?

Artifacts refer to anything that shows up on the MRI that isn’t really there. An error on the part of the technician conducting the test can create artifacts. But so can the pulsations of blood or cerebrospinal fluid as they flow through the body. Dental implants show up as dark spots.