High-amplitude radiofrequency pulses for metadevice-assisted MRI

Abstract

Abstract An aim of this study was to investigate whether magnetic resonance imaging of extremities benefits from the recently introduced wireless metamaterial based radiofrequency devices. Adapted radiofrequency safety limits provide an opportunity for application of high-amplitude radiofrequency pulses for the metadevice-assisted magnetic resonance imaging. The use of Shinnar-Le-Roux pulses for this purpose is explored. The performance of two widely used musculoskeletal pulse sequences is evaluated for standard SINC pulses and for Shinnar-Le-Roux pulses designed for this specific application. Metadevices provide room for image quality improvement and shortening of the study time while preserving the image quality.