The purpose of the code is to take a constant-gradient excitation and transform it to a minimum-time B1 and gradient pair that has the identical spatial excitation profile. The minimum-time design is subject to given gradient amplitude and slew-rate limits and RF amplitude limits. An example is shown below. A "standard" RF pulse and constant gradient waveform are shown at left. The minimum-time VERSE equivalent pair (subject to hardware limits) are shown at right.
(Click on image to enlarge)
You will need to compile the MEX function
code for your Matlab version - it has been tested on version 6.5.
Otherwise you can just use the functions in mintverse.c, primarily
the function called
For the simple example shown above, simply type, "exampleverse" in Matlab.
Otherwise, "help mintverse" will also help you invoke the functions.
Last updated Sept 24, 2004