SSFP Catalyzation Design Tools
Introduction
This site contains Matlab files that can be used
to design catalyzation sequences for SSFP (True-FISP,
FIESTA, Balanced-FFE).
Catalyzation sequences are useful for manipulating
magnetization into and out of the steady state.
Simple sequences [1,2] do this job quite well, but it is
sometimes desireable to have accurate manipulation
across a broad spectral band.
The most accurate method we have found so far is to
use Shinnar-Le Roux (SLR) pulse design [3] to design
spectrally selective catalyzing sequences. The Matlab
functions here should allow such design without too
much coding effort. The design method was described
previously in [4].
Downloads and Getting Started
You can download the entire set of Matlab functions
that you will need. These are all .m files, and have
been tested on Matlab 6.0. They should work on Matlab 5.0,
but will not work on previous verisons of Matlab.
1. Right-click on one of the links to download the .m files:
2a. On unix or linux make a directory called ssfptools and
copy the file to this directory,
and then run tar -xzvf ssfptools.tar.gz. Alternatively
you can run gunzip ssfptools.tar.gz and then
tar -xvf ssfptools.tar.gz.
2b. On Windows, use WinZip or another utility to extract
the files. Make a folder called ssfptools and extract them
to this folder.
3. Run Matlab from the ssfptools directory.
- Run help ssfptools to see a list
of design and analysis functions.
- Run tutorial1 for a tutorial about
SSFP catalyzation
Links
Coming soon!
References
- Deimling M., and Heid O. Proceedings of the 2nd SMR,
San Francisco, p.495, 1994.
- Scheffler K., et al. Mag. Reson. Med. 45(6)
p.1075. (June 2001).
- Pauly J., et al. IEEE Trans. Med. Imag. 10
p.53. (March 1991).
- Hargreaves B., et al. Mag. Reson. Med. 46(1) p.149
(July 2001).
This page is maintained by Brian Hargreaves. Your
comments, questions and suggestions are welcome via email.
(via Brian Hargreaves website)