Ryan Brown1, Bernd Stoeckel2, Daniel K. Sodickson1, Graham C. Wiggins1
1Radiology, Center for Biomedical Imaging, NYU School of Medicine, New York, NY, United States; 2Siemens Medical Solutions USA Inc., New York, NY, United States
7T torso imaging has been hindered by non-uniform B1+ distribution and inadequate B1+ in the center of the torso. Stripline coils are the preferred method for RF excitation at 7T and have shown promise for torso imaging. Nevertheless, loop coils have not been compared to striplines in the context of torso imaging. In this study, B1+ was measured using several single element prototype coils and an array of stripline/loop combination coils. Results showed that the stripline array offers improved transmit efficiency near the surface while loop coils may provide a marginal advantage at depth.