Detunable wireless resonator arrays for TMJ MRI: A comparative study

Haoqin Zhu; Qiang Zhang; Rangsong Li; Yuanyuan Chen; Gong Zhang; Ruilin Wang; Ming Lu; Xinqiang Yan

doi:10.1016/j.mri.2024.04.016

Detunable wireless resonator arrays for TMJ MRI: A comparative study

Magn Reson Imaging. 2024 Apr 14:111:84-89. doi: 10.1016/j.mri.2024.04.016. Online ahead of print.

Authors

Haoqin Zhu¹, Qiang Zhang², Rangsong Li³, Yuanyuan Chen³, Gong Zhang⁴, Ruilin Wang⁵, Ming Lu⁵, Xinqiang Yan⁶

Affiliations

¹ Sino Canada Health Institute Inc., Winnipeg, Manitoba, Canada. Electronic address: hzhu@taumedis.ca.
² The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia 010010, China.
³ Sino Canada Health Engineering Research Institute (Hefei) Ltd. Hefei, Anhui 230088, China.
⁴ Hubei Key Laboratory of Intelligent Conveying Technology and Device, Hubei Polytechnic University, China.
⁵ College of Nuclear Equipment and Nuclear Engineering, Yantai University, Yantai, Shandong, China.
⁶ Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Electrical and Computer Engineering, Vanderbilt University, Nashville, TN 37232, USA. Electronic address: xinqiang.yan@vumc.org.

PMID: 38621550
DOI: 10.1016/j.mri.2024.04.016

Abstract

Temporomandibular Joint Magnetic Resonance Imaging (TMJ MRI) is crucial for diagnosing temporomandibular disorders (TMDs). This study advances the use of inductively coupled wireless coils to enhance imaging quality in TMJ MRI. After investigating multiple wireless resonator configurations, including a 1-loop design with a loop diameter of 9 cm, a 2-loop design with each loop having a diameter of 7 cm, and a 3-loop design with each loop having a diameter of 5 cm, our findings indicate that the 3-loop configuration achieves the optimal signal-to-noise ratio (SNR), surpassing other wireless arrays. Bilateral deployment of wireless coils further amplifies SNR, enabling superior visualization of TMJ structures, particularly with the 3-loop design. This cost-effective and comfortable solution, featuring a detunable design, eliminates the need for system parameter adjustments. The study indicates broad adaptability across MRI platforms, enhancing TMJ imaging for routine clinical diagnostics of TMDs.

Keywords: Array; Detune; MRI; RF coil; TMJ; Wireless coil.