Abstract
Let us consider once again all the steps in an MR sequence:
-
1. Excitation
Switching on the slice-selection gradient, Excitation pulse (RF pulse),
Switching off the slice selection gradient.
-
2. Phase encoding
Switching on the phase-encoding gradient for a short time, but each time with a different strength.
-
3. Echo generation
There are two different possibilities, which we shall discuss immediately.
-
4. Measurement
Switching on the frequency encoding gradient, Receiving the echo.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
Elster AD (1993) Gradient-echo MR imaging: techniques and acronyms. Radiology 186: 1
Haacke EM, Frahm J (1991) A guide to understanding key aspects of fast gradient-echo imaging. J Magn Reson Imaging 1. 621
Mitchell DG (1999) MRI principles. W.B. Saunders, Philadelphia
Nitz WR (1999) MR imaging acronyms and clinical applications. Eur Radiol 9: 979
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 2003 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Weishaupt, D., Köchli, V.D., Marincek, B. (2003). Basic Pulse Sequences. In: How does MRI work?. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-07805-1_7
Download citation
DOI: https://doi.org/10.1007/978-3-662-07805-1_7
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-44094-9
Online ISBN: 978-3-662-07805-1
eBook Packages: Springer Book Archive