Zipper Artifact - Video Lesson

Hey everybody and welcome back to our course on artifacts in MRI. In this lesson, we will discuss zipper artifacts. We will learn what a zipper artifact is and how it looks, what causes it and its potential impacts on diagnosis. We'll also learn how to troubleshoot zipper artifacts and identify how to differentiate between zipper artifacts and other types of artifacts. Let's get started. First, let's discuss what a zipper artifact is. The zipper artifact is named for its characteristic appearance, a thin, straight line of alternating high and low signal intensity that runs across the image. This line is oriented in the frequency encoding direction and may extend partially or completely across the field of view. In many cases, it appears as a bright, sharply defined line that is visually distinct from surrounding anatomy. What makes the zipper artifact particularly recognizable is its uniform linear nature. Unlike artifacts related to anatomy or patient motion, the zipper artifact does not follow an