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Abstract #2501

SNR and B1+ Field Homogeneity of a Koch Fractal Geometry RF Surface Coil for 23Na-MRI

Cameron Nowikow1, Paul Polak1, Norman B. Konyer2, Natalia Nikolova3, and Michael D. Noseworthy1,2,3
1School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada, 2Imaging Research Centre, St. Joseph's Healthcare, Hamilton, ON, Canada, 3Electrical and Computer Engineering, McMaster University, Hamilton, ON, Canada

There is an intrinsic lack of SNR in 23Na-MRI images compared to that of proton-based MRI. It is possible that RF coil geometry can affect the acquired images' SNR. This abstract is an investigation into the B1+ field characteristics of a Koch snowflake fractal RF surface coil to see if the produced field is more homogeneous than that of a standard circular surface coil which could lead to higher SNR in the resultant 23Na images. It was found that the circular geometry produced a more homogeneous field, along with higher SNR than the fractal coil.

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