In-vivo detection of oscillatory magnetic field with an oscillatory-selective detection (OSD)
Yuhui Chai1, Jingwei Sheng1, Bing Wu2, Yang Fan2, and Jia-Hong Gao1
1Center for MRI Research, Peking University, Beijing, China, People's Republic of, 2GE Healthcare, MR Research China, Beijing, China, People's Republic of
In-vivo detection of
oscillatory magnetic field may lead to fundamental development of functional MR
imaging. The recently developed spin-lock oscillatory excitation (SLOE) method
exhibited sub-nanotesla level of sensitivity. However its application in vivo
is troubled by main field inhomogeneity. In this work, an oscillatory-selective
detection (OSD) is proposed to overcome this limitation and hence to improve
sensitivity of in-vivo detection of oscillatory magnetic field. OSD has also been verified as a viable tool in mapping transcranial
alternating current.
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