The GRE/SWI pulse sequence EXPLAINED | MRI Physics Course Lecture 12

Since the dawn of mankind, a few existential questions have persisted through the ages. How did the universe begin? What is the meaning of life? How in the world can we make an echo using only gradients? Well the good news is we’re going to answer this last question and free up your mind to find the answers to the other ones. Please tell me when you figure it out. And in the process we’re going to encounter a disturbing and closely held secret regarding gradient fields. But what if I told you this secret was actually the key to our salvation in understanding advanced MRI physics? So tell your family and friends you love them, give the dog one last pet and prepare yourself as by the end of this lecture, life will never be the same. This is the Gradient Echo… EXPLAINED. CHAPTERS: 00:00 Intro/Recap 01:21 The Gradient Field 05:17 The Dirty Secret 07:14 Rephasing 09:12 The Gradient Recalled Echo 13:19 Multi-Echo GRE 14:49 Controlling the Echo 16:01 The True Spin-Echo Diagram 17:24 Wrap-up/Outro Like these lectures and want more? Consider supporting the quest for truth in MRI Physics by becoming a YouTube member or consider supporting by donating at: https://www.buymeacoffee.com/lightsonrads Want me to bring these lectures live to your practice or institution packed full of demos and a lot of arm waving? Send an email to: [email protected] Questions or suggestions for future topics? Send an email or follow Dr. TE on: Instagram at: https://www.instagram.com/lightsonradiology/ Twitter: @DrTEMD Song: JOXION & EXYT - Testify [Arcade Release] Music provided by NoCopyrightSounds Free Download/Stream: http://ncs.io/testify Watch: http://ncs.lnk.to/testifyAT/youtube Song: Malik Bash - Ghosts [NCS Release] Music provided by NoCopyrightSounds Free Download/Stream: http://ncs.io/Ghosts Watch: http://youtu.be/-9Z5Nhsm7GA #mri #radiology #physics #course #spin #echo #radiologytutorial #radiologycourse #pulse #gradient