Filling k-Space: Pulse Sequences - Video Lesson

Hey everybody. Welcome to today's lesson on mapping and filling kSpace. This lesson focuses on how the phase encoding and frequency encoding gradients control the placement of data points into k space. We will discuss the relationship between encoding gradients and k space data points. Let's get started. As we begin this lesson, let's remember a few key points about k space. K space is not the image. It is a place where data is stored which is later turned into an image. K space has two axes, the phase axis and the frequency axis. The frequency axis is horizontal and the phase axis is vertical. Which area is activated directly correlates to the frequency encoding gradient and the phase encoding gradient during the scan. You can think of it like a chest of drawers. The phase