Submitted by elm4010 on April 29, 2021 - 3:41pm
Title | Self-tuning stretchable RF receive coil concept using liquid metal encapsulated within an elastic polymer |
Publication Type | Conference Proceedings |
Year of Conference | 2021 |
Authors | Motovilova E, Vincent J, Robb F, Taracila V, Shin J, Tan ETsoon, Sneag DB, Potter HG, Winkler SA |
Conference Name | ISMRM Virtual Conference |
Abstract | Commercial coils, built to accommodate a wide range of anatomical dimensions, are rigid and of fixed size, thus yielding sub-optimal SNR and patient comfort. Existing flexible/stretchable solutions suffer from resonance detuning due to inductance changes under stretch/deformation. In this work, we propose an alternative coil concept using liquid metal microchannel conductors encapsulated in a stretchable polymer matrix. We developed a self-tuning coil using a stretchable, adaptively compensating, interdigital capacitor. We observed a <0.5% of frequency stability in silico and in vitro. In vivo results were demonstrated on 3T wrist imaging. |