John Adams1,2, William Handler1,2, and Blaine Chronik1,2
1Department of Physics and Astronomy, Western University, London, ON, Canada, 2xMR Labs, London, ON, Canada
1Department of Physics and Astronomy, Western University, London, ON, Canada, 2xMR Labs, London, ON, Canada
Renewed interest in clinical low-field MR systems has opened up a new
design space for MR pulse sequence design. To explore these opportunities, and
to better inform hardware design, we are developing a flexible simulation tool
based on a numerical simulation of the Bloch equations. This tool will both be
able to model pulse sequences under the influence of realistic applied fields,
and account for changes in relaxation time due to changes in field strength.
This abstract presents our work to date in developing this tool; initial
validation has been performed using a series of simple NMR sequences including
stimulated echoes and a CPMG train. Both these sequences produced realistic
results which show that the core of our simulation tool accurately simulates an
MR experiment.
Figure 1 - Simulated CPMG Signal
Figure 2 - Simulated Stimulated Echo Signal