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Evaluation of Short Folded Dipole Antennas as Receive Elements of Ultra-High Field (UHF) Human Head Array
{Increasing the number of surface loops in a human head receive (Rx)-array improves the peripheral SNR, while the central SNR doesn\textquoterightt substantially change. Recent work demonstrated that optimal central SNR at UHF requires a contribution of two current patterns associated with a combination of loops and dipoles. A novel array consisting of 8 transceiver surface loops and 8 optimized folded Rx-dipoles was developed and tested. Addition of Rx-dipoles doesn\textquoterightt substantially alter B1+ field and the maximum local SAR. At the same time the new design improves both central and peripheral SNR as compared to the similar 16-element array with Rx-only vertical loops.}
@misc{item_3054564, title = {{Evaluation of Short Folded Dipole Antennas as Receive Elements of Ultra-High Field (UHF) Human Head Array}}, booktitle = {{ISMRM 27th Annual Meeting \& Exhibition}}, abstract = {{Increasing the number of surface loops in a human head receive (Rx)-array improves the peripheral SNR, while the central SNR doesn\textquoterightt substantially change. Recent work demonstrated that optimal central SNR at UHF requires a contribution of two current patterns associated with a combination of loops and dipoles. A novel array consisting of 8 transceiver surface loops and 8 optimized folded Rx-dipoles was developed and tested. Addition of Rx-dipoles doesn\textquoterightt substantially alter B1+ field and the maximum local SAR. At the same time the new design improves both central and peripheral SNR as compared to the similar 16-element array with Rx-only vertical loops.}}, year = {2019}, slug = {item_3054564}, author = {Avdievich, N and Solomakha, G and Ruhm, L and Scheffler, K and Henning, A} }