Abstract #3224
An Algorithm for Maximum-SAR Targeted RF Hyperthermia
Mihir Pendse 1 and Brian Rutt 1
1
Radiology, Stanford University, Stanford,
CA, United States
While shorter electromagnetic wavelengths and resulting
SAR hotspots are a source of concern in ultra-high field
MRI, the same phenomenon can be desirable in the field
of targeted RF hyperthermia. In this work, we describe
the maxSAR pulse design problem and implement a
nonconvex interior-point algorithm to solve it. We
demonstrate in simulation that an 8-loop pTx array
operating at 298 MHz (7T), can be used to intentionally
produce localized hotspots at arbitrarily located target
regions while still constraining the SAR at healthy
voxels to be within the local SAR regulatory limit.
This abstract and the presentation materials are available to members only;
a login is required.
Join Here
