What Is a Blooming Artifact

Blooming artifact is a susceptibility artifact encountered on some MRI sequences

What causes blooming artifact MRI?

The cause of the artifact is that the high Hounsfield value of such objects coupled with the use of smoothing filter kernels results in saturated pixels, due to which these structures can seemingly appear larger than their real size.

What causes ghosting in MRI?

Ghosting is a type of structured noise appearing as repeated versions of the main object (or parts thereof) in the image. They occur because of signal instability between pulse cycle repetitions. Ghosts are usually blurred, smeared, and shifted and are most commonly seen along the phase encode direction.