Abstract #1225

Detunable Wireless Litzcage Coil for Human Head MRI at 1.5T

Haoqin Zhu¹, Michael L. Lang^1,2, Yijin Yang³, Melanie Martin ⁴, Gong Zhang⁵, Qiang Zhang⁶, Yuanyuan Chen⁷, and Xinqiang Yan^3,8,9

¹Research center, Sino Canada Health Institute Inc., Winnipeg, Manitoba, Canada, Winnipeg, MB, Canada, ²Department of Physics, The University of Winnipeg, Winnipeg, MB, Canada, ³Department of Electrical and Computer Engineering, Vanderbilt University, Nashville, TN, United States, ⁴Brain Imaging and Metabolic Research, The University of Winnipeg, Winnipeg, MB, Canada, ⁵Hubei Key Laboratory of Intelligent Conveying Technology and Device, Hubei Polytechnic University, Huangshi, China, ⁶Physical Examination Center, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China, ⁷Sino Canada Health Engineering Research Institute (Hefei) Ltd, Hefei, China, ⁸Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN, United States, ⁹Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, TN, United States

Synopsis

Keywords: Non-Array RF Coils, Antennas & Waveguides, RF Arrays & Systems, Wireless Coil, Detune, Litzcage, Birdcage, RF Coil.

Motivation: Detuning wireless volume coils is challenging due to their complex structure, multiple resonant modes and multiple detuning circuits.

Goal(s): Developing an efficient method to geometrically decouple from the body coil

Approach: Designing an inductive birdcage coil featuring a figure-of-eight conductor pattern within the rungs, conducting volunteer and phantom image for compare its performance with the body coil and a receive array.

Results: The wireless Litzcage coil offers ~3.9 times higher SNR than the body coil. A 10% boost in the central area, a 21% reduction at the surface, and similar head image quality compared to a commercial 12-channel Head coil.

Impact: Applies to 0.55T, 3.0T, and 7T MRI systems, and expands to extremity, breast and body imaging. Simplifies coil design, improves detuning, and lowers costs. Lightweight and user-friendly, enabling MRI-guided therapy and streamlined clinical processes.

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