Truncation/Gibbs artifacts appear as what type of appearance?

Truncation or Gibbs artifacts are often described as a "ringing" appearance in imaging. This phenomenon occurs when there is a sudden change in signal intensity at the edges of structures, particularly in cases of high contrast. The artifacts manifest as oscillations or ripples around the edges of an object, which can create misleading visual cues in the imaging data.

This ringing effect is particularly relevant in the context of MRI and can be exacerbated by certain imaging techniques that utilize more abrupt transitions in signal. Understanding ringing artifacts is crucial for professionals in the field, as it informs them not just about potential misinterpretations of the images but also helps in optimizing imaging protocols to minimize these artifacts in future scans.