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Abstract #1388

Obtaining patient specific RF field maps: Comparison of B1+ measurements and simulations for a human pelvis

Kroeze H, van den Bergen B, Lagendijk J, Bartels L, van den Berg C
University Medical Centre

Parallel imaging and excitation techniques require the acquisition of excitation and sensitivity field maps of patients. In this study we compared an experimental B1+ field mapping technique with FDTD simulations of the same patient pelvis anatomy. We obtained a very well agreement between measurements and simulations. The B1+ distribution is built up of a global pattern caused by the elliptical human pelvis plus a local anatomy dependent part. While the measured B1+ maps show more details, the electromagnetic simulations also provide information about the receive and electric fields. These methods can be applied to parallel excitation and imaging with transceive coils.

Keywords

fieldanatomyhuman