An omnidirectional stretchable and flexible radiofrequency coil has been developed using conductive thread stitched onto athletic material. This single-loop surface coil can be placed at the closest proximity to the skin. When compared to a flexible, copper-clad printed circuit board coil, resulting MR FSE images of a muscle phantom showed comparable SNR and image quality, especially when compared to a PCB coil spaced 4.2 cm above the phantom. This design allows not only for close proximity of placement to the skin, but also for joint imaging at various degrees of flexion and positioning.
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