Improving radiofrequency power and specific absorption rate management with bumped transmit elements in ultra‐high field MRI
Magnetic Resonance in Medicine2020Vol. 84(6), pp. 3485–3493
Citations Over TimeTop 11% of 2020 papers
Alireza Sadeghi‐Tarakameh, Gregor Adriany, Gregory J. Metzger, Russell Lagore, Steve Jungst, Lance DelaBarre, Pierre‐François Van de Moortele, Kâmil Uǧurbil, Ergin Atalar, Yiğitcan Eryaman
Abstract
In this study, we investigated a simple design strategy based on adding bumps to a resonant element to reduce the local SAR while maintaining B1+ inside an ROI. As an example, we modified an FD and performed EM simulations and phantom experiments with a 10.5T scanner. Results show that the peak 10g-averaged SAR can be reduced more than 25%.
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