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Abstract #2613

Comparison of 7+1ch Tx Arrays and Implementation for Torso Imaging at 3T - Four Different Coil Geometries with Phantom and Human Body

Yeun Chul Ryu1, Sukhoon Oh1, Christopher Sica1, Wei Luo2, Yong-Gwon Kim3, Christopher M. Collins1, 4

1Radiology, The Pennsylvania State University, Hershey, PA, United States; 2Engineering Science and Mechenics, The Pennsylvania State University, University Park, PA, United States; 3Radiological Science, Konyang University, Korea, Republic of; 4Bioengineering, The Pennsylvania State University, Hershey, PA, United States

Here, we report a progress toward a case where 8 elements are placed in the space above the patient table as transmit coil and additional receive coil (or array) to get more intensive signal from the chest. The 8-channel tx body array was suggested. Through the simulations, we compared 4 different 7+1 tx array structures and showed the utilities of B1+ shimming in multi-channel tx body imaging at 3T. This structure and shimming over the body size phantom we propose provide an enhanced homogeneous B1 field in large ROI imaging. As the result of B1 shimming with 4 different tx array structure and with 2 different objects, the resultant B1 fields guarantee consistent homogeneity over a large ROI.