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Abstract #0300

Numerical Evaluation of SAR Within Whole-Body Pregnant Woman Models in MRI Birdcage Coil

Zhangwei Wang1, George X. Xu2, Victor Taracila1, Jason Jin1, Fraser J. Robb1

1GE Healthcare Coils, Aurora, OH, USA; 2Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA

Whole body pregnant woman models at different gestational stages were adopted to investigate the SAR variation at 1.5T. The highest SAR is occurred in the mother's peripheral tissues in all pregnancy phase. And the maximum local SAR of the fetus is below IEC limitation. The results show that the local maximum SAR1g and SAR10g can be better indications as limitation factor other than the whole body average SAR. Future work will be done by using more pregnancy stages and higher resolution models.