Close this window

Echo Management
Kim Butts, Ph.D., and Scott D. Swanson, Ph.D., Organizers

Last updated 05 May 2009

Course Description:
Proper echo management is at the heart of every useful imaging pulse sequence.  This four-hour course will review the basics of simple echo formation, study the problems encountered with refocusing transverse magnetization, and discuss the theoretical and practical means to assure well formed echoes.  The course will build up from simple pulse sequences to Fast Spin Echo imaging and fully refocused SSFP imaging.
Audience Description:
This course is designed for graduate students, post-doctoral fellows and residents with an interest in pulse sequence design, fast imaging and body imaging.  Participants should be familiar with k-space.

Educational Objectives:
Upon completion of this session, participants should be able to:

Explain the basic principles of spin echo, gradient echo, and stimulated echo formation;
Appreciate the complexity of coherence pathways that arise when two or more RF pulses are applied;
Describe methods that investigators use to mitigate effects of multiple coherence pathways to assure formation of proper echoes;
List techniques used in steady-state free precession (SSFP) pulse sequences to minimize spurious echo formation;
Determine which sequence will be appropriate for what clinical application.


Tuesday, 18 May
07:00 Basic Principles of Echo Formation R. Scott Hinks
07:25 Basics of Echo Formation: Refocused James B. Murdoch
07:50 Discussion
Wednesday, 19 May
07:00 Basic FSE/TSE and FLARE David G. Norris
07:25 Advanced FSE/TSE Jürgen Hennig
07:50 Discussion
Thursday, 20 May
07:00 Gradient Recalled Echoes Felix Wehrli
07:25 Advanced Gradient Echo Imaging Samuel Patz
07:50 Discussion
Friday, 21 May
07:00 Fully Refocused SSFP Klaus Scheffler
07:25 Setting Up the steady State in SSFP Brian A. Hargreaves
07:50 Discussion