The recently developed 60-channel Tic-Tac-Toe transmit coil was analyzed for use in either single or parallel transmit systems at 7T. With the 60-channel TTT coil, excellent homogeneity can be achieved and safe levels of SAR can be provided regardless of which system (sTx or pTx) is used.
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Sajewski et al. (2024) studied this question.
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