Apparatus and method for tuning the permittivity of ultrahigh dielectric constant materials in an RF coil for MR imaging
Tunable ultrahigh dielectric constant ceramics to significantly improve RF coil efficiency, detection sensitivity, and imaging signal-to-noise ratio in magnetic resonance systems
- Diagnostic medicine
- Clinical research
Magnetic Resonance (MR) imaging and spectroscopy play crucial roles in modern clinical diagnoses and research. At the same time, MR system performance is limited by several critical factors, one is low signal-to-noise ratio (SNR), which is critical to produce high quality diagnostic images. To address this issue and improve system performance, researchers from the University of Minnesota have developed an ultrahigh dielectric constant ceramic material to be used in conjunction with RF coils in MR systems. This ultrahigh dielectric material allows for varying permittivity at different operating frequencies. The advantages of this technology include denoising effect, high RF coil transmission & reception efficiencies, and improved SNR for magnetic resonance or spectroscopic imaging applications. This novel technology is robust and cost-effective and could largely improve imaging sensitivity and resolution, which is critical for biomedical research and clinical diagnostics.
Phase of DevelopmentTRL: 3-5
A prototype has been developed and tested in vitro and in vivo.
Desired PartnershipsThis technology is now available for:
- Sponsored research
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- Chen, Wei, Byeong-Yeul Lee, Xiao-Hong Zhu, Hannes M. Wiesner, Maryam Sarkarat, Navid P. Gandji, Sebastian Rupprecht, Qing X. Yang, and Michael T. Lanagan (2020), Tunable ultrahigh dielectric constant (tuHDC) ceramic technique to largely improve RF coil efficiency and MR imaging performance, IEEE transactions on medical imaging
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