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.