• 1. High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, P.R.China;
  • 2. University of Chinese Academy of Sciences, Beijing 100049, P.R.China;
  • 3. Key Laboratory of High Field Magnetic Resonance Imaging of Anhui Province, Hefei 230031, P.R.China;
  • 4. CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, P.R.China;
ZHONG Kai, Email: kzhong@hmfl.ac.cn
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Quantitative susceptibility mapping (QSM) can provide tissue susceptibility information and has been adapted for clinical research and diagnosis. QSM of monkey brain in vivo at 9.4 T has not been demonstrated so far. In this study 9.4 T in vivo monkey brain QSM was performed with 200 μm isotropic high-resolution. It was found that the inherent singularity problem for QSM diverged significantly at ultra-high image resolution during regularization process and resulted in severe image artifacts. The K-space division (TKD) was applied to eliminate the artifacts, with an optimal threshold level between 0.2 and 0.3. High resolution QSM of monkey brain in vivo can thus provide a novel tool for brain research.

Citation: WEN Qingqing, YANG Hongyi, ZHONG Kai. Quantitative susceptibility mapping of ultra-high resolution monkey brain in vivo at 9.4 T. Journal of Biomedical Engineering, 2019, 36(3): 349-355. doi: 10.7507/1001-5515.201809009 Copy

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