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Abstract #2913

Conductivity mapping at 0.55 T with balanced steady state free precession

Santhosh Iyyakkunnel1,2 and Oliver Bieri1,2
1Department of Radiology, University Hospital Basel, Basel, Switzerland, 2Department of Biomedical Engineering, University of Basel, Basel, Switzerland


Conductivity mapping depends sensitively on the signal-to-noise ratio (SNR) of the transmit phase estimation. It is thus questionable, whether conductivity mapping can be performed at low field. Due to reduced off-resonances, however, a possible solution for the reduced SNR might be offered by balanced steady state free precession (bSSFP). Brain conductivity mapping with bSSFP was investigated at 0.55 T and appears to be feasible but besides SNR also the reduced curvature of the transmit field becomes challenging.

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