Abstract #1603

A wireless resonator layer for high-resolution TMJ MRI at 1.5 T

Haoqin Zhu¹, Qiang Zhang², Rangsong Li ³, Yuanyuan Chen³, Gong Zhang⁴, Ming Lu⁵, Yujie Ren⁶, and Xinqiang Yan^5,7,8

¹Research center, Sino Canada Health Institute Inc., Winnipeg, Manitoba, Canada, Winnipeg, MB, Canada, ²Physical Examination Center, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China, ³Sino Canada Health Engineering Research Institute (Hefei) Ltd, Hefei, China, ⁴Hubei Key Laboratory of Intelligent Conveying Technology and Device, Hubei Polytechnic University, Huangshi, China, ⁵Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN, United States, ⁶Department of Physics, The University of Winnipeg, Winnipeg, MB, Canada, ⁷Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, TN, United States, ⁸Department of Electrical and Computer Engineering, Vanderbilt University, Nashville, TN, United States

Synopsis

Keywords: RF Arrays & Systems, RF Arrays & Systems, TMJ, MRI, wireless coil, SNR, detune, RF coil

Motivation: Most imaging facilities lack specialized coils, resulting in suboptimal TMJ MRI scans using head receive array.

Goal(s): Developing flexible, cost-effective and efficient accessories to enhance TMJ MRI image using existing facilities.

Approach: Improve TMJ MRI scans by incorporating an inductive wireless resonator insert into a head array. evaluating its performance against the head array alone using phantom and in vivo imaging.

Results: The SNR increases by 5.3-fold times at the TMJ's articular fossa area and remains 2.4-fold at a 4cm depth, using a wireless resonator insert and head array combination, compared to a phased array.

Impact: Combining wireless RF resonators and phased arrays transformed MRI coils technology. It enhancing SNR in specific regions like the thyroid and carotid artery, allowing parallel imaging . This advancement ensures affordability, well-workflow, and the adaptability to various magnetic field strengths.

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