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Abstract #1823

Converting digital MRI receivers built for 1.5T into 7T receivers using Surface Acoustic Wave filters

Mark Gosselink 1 , Andrea Anzellotti 2 , Giel Mens 2 , Marco Boutelje 2 , Bart Voermans 2 , Hans Hoogduin 1 , Peter R. Luijten 1 , Cecilia Possanzini 2 , and Dennis W.J. Klomp 1

1 University Medical Center Utrecht, Utrecht, Utrecht, Netherlands, 2 Philips Healthcare, Best, Netherlands

MRI systems can be equipped with digital on coil receivers, providing increased SNR when requiring high dynamic range, and unlimited number of receiver channels. Higher field systems like 7T may benefit from both features as SNR increases (and thus dynamic range), and higher acceleration factors can be obtained at contained geometry factors (thus benefit from more receiver channels). In this work we demonstrate that using under-sampling combined with Surface Acoustic Wave filters can convert 1.5T- into 7T- digital receivers with low noise figure.

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