The Effect of Field Strength on Wire-tip Heating: Simulation and Direct Measurements at 1.5T and 3T
Volkan Acikel1 and Daniel B Ennis1,2
1Department of Radiological Sciences, University of California Los Angeles, Los Angeles, CA, United States, 2Department of Bioengineering, University of California Los Angeles, Los Angeles, CA, United States
MRI presents several potential risks for
patients with implanted devices and one of the main concerns is RF induced heating
of devices and nearby tissues. The aim
of this study was to compare the RF induced heating characteristic of wires at 1.5T
and 3T using simulations and direct measurements. Greater heating (SAR
amplification) can be observed at lower field strengths for longer wires.
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