Bertram J. Wilm1, Benjamin E. Dietrich1, Jonas Reber1, S. Johanna Vannesjo1, and Klaas P. Pruessmann1
Gradient impulse response functions were recently proposed to characterize MR
gradient systems with high accuracy. However, changes of the impulse response, e.g. due to thermal drifts, can limit its accuracy and hence applicability. To overcome this problem, we present a novel method
where the gradient response is continuously characterized during MR sequences
from repeatedly performed field probe measurements. The benefit of this method is
demonstrated by obtaining the continuous gradient output of MR sequences and first
imaging results are presented.