Ruytenberg Thomas, Webb Andrew G
C.J. Gorter Center for High Field MRI, Department of Radiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands.
C.J. Gorter Center for High Field MRI, Department of Radiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands.
J Magn Reson. 2017 Nov;284:94-98. doi: 10.1016/j.jmr.2017.09.015. Epub 2017 Oct 3.
Ceramic-based dielectric resonators can be used for high frequency magnetic resonance imaging and microscopy. When used as elements in a transmit array, the intrinsically low inter-element coupling allows flexibility in designing different geometric arrangements for different regions-of-interest. However, without being able to detune such resonators, they cannot be used as elements in a receive-only array. Here, we propose and implement a method, based on mode-disruption, for detuning ceramic-based dielectric resonators to enable them to be used as receive-only elements.
基于陶瓷的介质谐振器可用于高频磁共振成像和显微镜检查。当用作发射阵列中的元件时，其固有的低元件间耦合允许在为不同感兴趣区域设计不同几何排列时具有灵活性。然而，如果不能使此类谐振器失谐，它们就不能用作仅接收阵列中的元件。在此，我们提出并实现了一种基于模式破坏的方法，用于使基于陶瓷的介质谐振器失谐，从而使其能够用作仅接收元件。
