Back
to Research Listing
 RF excitation in the presence of time-varying gradients for
multi-dimensional selective excitation offers several interesting
applications, including flexibly shaped excitation volumes, and
spatial modulation of the B1 excitation profile to mitigate RF
field inhomogeneity at high field. Due to limitations on gradient
hardware and RF power, such pulse designs can result in long
waveforms that may limit their performance and practical applicability.
Using parallel excitation design in conjunction with coil arrays
capable of simultaneous, independent RF transmission, the pulse
duration can be shortened by taking advantage of variations in
spatial excitation profiles among coils in the array.
Additional Information
--
|
