Abstract #3046

Comparison of Elements Geometries in B1 Shimming with a 16-Channel Whole Body Transmit Array at 3T

Yeun Chul Ryu¹, Bu Sik Park^2,3, Sukhoon Oh², Silvie Garret⁴, Christopher M. Collins^3,5

¹Radiology, The Pennsylvania State University, Hershey , PA, USA; ²Radiology, The Pennsylvania State University, Hershey, PA, USA; ³Bioengineering, The Pennsylvania State University, Hershey, PA, USA; ⁴Aerospace Engineering, The Pennsylvania State University, University Park, PA, USA; ⁵Radiology, The Pennsylvania State University, Hershey, PA, USA

Here we evaluate the excitation homogeneity and SAR of three different Tx arrays after B1 shimming in the human body at 3T. It appears that in this particular comparison an array based on strip line elements can produce better homogeneity and lower SAR than can an array of rectangular loops or an array of mixed elements (strip line and loop). While many factors are considered in designing coils for production, it is hoped that methods and results like these will be used in the future to guide decisions and maximize benefit.