Cut-away view of a modern MRI machine. Please see text for description. Source: Overview of Diagnostic Modalities and Contrast Agents, Introduction to Diagnostic Radiology Citation: Elsayes KM, Oldham SA. Introduction to Diagnostic Radiology; 2015 Available at: https://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/Books/1562/Elsayes_Ch01_Fig-01-28.png&sec=95875432&BookID=1562&ChapterSecID=95875179&imagename= Accessed: December 26, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved