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Abstract #3421

Susceptibility effects of uHDC material upon static field homogeneity

Christopher T Sica1, Navid Pourramzan Gandji2, and Qing X Yang2
1Radiology, PennState University College of Medicine, Hershey, PA, United States, 2Neurosurgery, PennState University College of Medicine, Hershey, PA, United States

We performed a study to assess the effects of ultra-high dielectric constant material (uHDC) on the static field homogeneity at 3T. We characterized these effects on both a spherical and body phantom with 3D off-resonance field mapping and balanced SSFP imaging. The static field experienced shifts of up to 100 Hz in the presence of uHDC monolithic blocks. Shimming was able to partially compensate for these shifts. Future studies incorporating these materials should take their susceptibility effects into account.

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