Magnetic Susceptibility Artifact - Video Lesson

Hey everybody, and welcome to our course on MRI artifacts. In this lesson, we will discuss magnetic susceptibility artifacts. We will discuss what the magnetic susceptibility artifact is, what it looks like, what causes it, and how it impacts diagnosis. We will also discuss how to troubleshoot magnetic susceptibility artifacts. Let's get started. First, let's define magnetic susceptibility artifacts. Magnetic susceptibility artifact refers to distortion or signal loss that arises when adjacent materials respond differently to the static magnetic field known as B sub zero. For instance, in the head, the cerebrospinal fluid and brain tissue lie adjacent to one another but respond very differently to B sub zero. These differences alter the local homogenous magnetic environment disrupting the uniform procession of hydrogen protons. As a result, image quality may be compromised or, in certain clinical context, enhanced in a diagnostically useful way. Metal is the most