Abstract #1333
Simultaneous Deep-local Hyperthermia and 1.5T MR Imaging an Experimental Systems Interactions Study
Matthew Tarasek 1 , Tomas Drizdal 2 , Ruben Pellicer 2 , Wouter Numan 2 , Paolo Togni 2 , Gyula Kotek 2 , Gerard van Rhoon 2 , Maarten Paulides 2 , and Desmond Yeo 1
1
MRI, GE global research, Niskayuna, NY,
United States,
2
Erasmus
Medical Center, Netherlands
The MRlabcollar was designed as a magnetic resonance
(MR)-compatible array for simulation guided conformal
radiofrequency (RF) hyperthermia treatment of head and
neck (H&N) tumors. Here we present a comprehensive
characterization of interactions between the MRI scanner
and MRlabcollar to analyse MR image quality, especially
with simultaneous operation of both RF sub-systems. We
characterize image SNR, the relative B1+ uniformity, B0
distortion due to placement of the array, and
phase-difference MR thermometry (MRT) maps acquired
during RF transmit from the array. Results show that
concurrent heating and imaging is feasible with no
significant adverse effects on image quality.
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