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Abstract #1901

Optimized radio frequency coil for low-field magnetic resonance relaxometry in human finger

Junnan Wang1, Rongsheng Lu1, Layale Bazzi2, Xiaowen Jiang1, Yi Chen1, Zhengxiu Wu1, Qing Yang1, Zhonghua Ni1, Hong Yi1, and Dan Xiao2
1School of Mechanical Engineering, Southeast University, Nanjing, China, 2Department of Physics, University of Windsor, Windsor, ON, Canada


The permanent magnet based low-field and low-cost MR systems increase the accessibility and potential of point-of-care diagnosis, where relaxometry measurement is usually preformed due to the low requirement of B0 field homogeneity. However, inhomogeneous B1 field results in errors in the T2 relaxation times, especially in in-vivo localized human tissue measurements. A novel RF coil termed T coil has been developed to provide a better B1 field homogeneity and more accurate in-vivo relaxation measurements than the conventional coils. This may enable the noninvasive diagnosis of diseases through the human finger measurements with portable and affordable MR systems.

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