Zhentian Xie1, Duan Xu1, Daniel Vigneron1,2, Xiaoliang Zhang1,2
1Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA; 2UCSF/UC Berkeley Joint Graduate Group in Bioengineering, San Francisco/Berkeley, CA, USA
An unshielded 7T volume coil using common mode technique was developed for in vivo rat MRI. With the common mode method, the B1 homogeneity was improved with less number of elements or rungs compared with conventional designs. Less number of elements results in less number of resonance modes of a volume coil, which potentially improve coil efficiency and alleviate design difficulties of high frequency volume coils.