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Abstract #3052

Optimization of Encoding Fields for PatLoc Imaging

Anna M. Welz1, Hartmut Schmidt2, Jrgen Hennig1, Maxim Zaitsev1

1Dept. of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Freiburg, Germany; 2Bruker Biospin MRI GmbH, Ettlingen, Germany

Todays limitation of gradient performance is predominantly determined by peripheral nerve stimualtion. To overcome this problem, imaging with local non-bijective, non-linear encoding fields was proposed which allow for higherDBmax/dt and shifts this problem back into the hardware regime. These special multipolar encoding fields have more parameters to be optimized then linear gradients, like number of poles, local gradient strength and orthogonality. This abstract studies the properties of such multipolar fields and determines the optimal PatLoc encoding field.