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Abstract #2789

Receiver-Only Array Geometry and Design Influence on B1+ Field and Specific Absorption Rate (SAR)

Narayanan Krishanmurthy1, Tamer S. Ibrahim1

1University of Pittsburgh, Pittsburgh, PA, United States

In this work we evaluate the effect of a wide variety of receive-only insert geometry including cylinders and helmets with different trace widths on spin excitation field and SAR of a 7T TEM transmit coil.

Keywords

absorbed absorption affected alter analyzer anatomically appreciably array arrays axial bottom brain calculating cause challenges channel channels circuits close coil complete conformed connected constant copper coronal coupling cylinders cylindrical decreased degrade dependent deposition design detailed determine development diameter distort electric electromagnetic element elements equalized evaluate even excitation experimentally field fields fitting full geometry global hardware head heads height helmets impedance increasing induced influence input insert inserts inside john loaded local loop marginally matched medical micro model modeled modeling models network normalizing numerical overlapped parallel patient peak ports power presence quadrature receive receiver reflection safety scaling scatter simulation simulations slices solutions spin sqrt staggered subject summarized supported surface system systems table tamer technology trace transmission transmit transmitted tuning ultra uniformity varied variety verified watt wave wide width widths