A Universally Sized, High-Resolution and Parallel Imaging Optimized 32-Channel Ultra-flexible Phased-Array for 3T Small Joint MRI

作者：Yun-Jeong Stickle, Clyve Follante, Canyon Aspy, Seth Blankenship, Tae-Young Yang, Kristine Barnhart, Kristy Calderwood, Thomas Stickle, Fraser Robb, Maggie Fung, Yan Wen, Ek T. Tan, Allison Lowe, Darryl B. Sneag · 发表于：Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition · 年份：2025 · DOI：10.58530/2025/1183 · 研究领域：Advanced MRI Techniques and Applications、Ultrasound and Hyperthermia Applications、Electron Spin Resonance Studies

Motivation: Conventional, small joint coils have larger loop sizes, limited z-coverage, and limited elements, yielding insufficient SNR and acceleration capabilities. Goal(s): To optimize a small, flexible coil to accommodate higher SNR, acceleration, and resultant higher spatial resolution for hand/wrist MRI. Approach: A 32-channel universally sized, parallel-imaging optimized coil, employing a staggered layout, was designed with two different-sized flexible dual loops, exceptionally low noise preamplifiers and highly flexible mechanics. Results: Study results demonstrated higher SNR and improved acceleration capabilities for this optimized coil compared to previous prototype and conventional coils. Impact: An optimized small loop coil design, with flexible mechanics, provides improved z-coverage, comfortable fit, high-resolution and higher acceleration for in-vivo 3T hand/wrist MRI.