Open AccessApplications of dielectric pads, novel materials and resonators in 1.5T and 3T MRI
Author(s) -
Alexey Slobozhanyuk,
Irena Živković,
Alena Shchelokova,
Anna Mikhailovskaya,
Ivan V. Sushkov,
Elizaveta Nenasheva,
Irina V. Melchakova,
Pavel A. Belov,
Andrew Webb
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1461/1/012166
Subject(s) - materials science , dielectric , metamaterial , permittivity , sensitivity (control systems) , image resolution , resonator , magnetic field , field strength , optoelectronics , magnetic resonance imaging , signal to noise ratio (imaging) , signal (programming language) , electronic engineering , nuclear magnetic resonance , optics , computer science , telecommunications , physics , engineering , radiology , medicine , quantum mechanics , programming language
In order to boost the performance of magnetic resonance imaging without increasing the static magnetic field, it is necessary to increase its intrinsic sensitivity. This allows a reduction in the scanning time, increased spatial resolution, and can enable low-field strength systems (which are much cheaper and can be used to scan patients with metallic implants) to have a higher signal-to-noise ratio (SNR) so that they are comparable to more expensive higher field strength systems. In this contribution, we demonstrate radiofrequency field enhancing and shaping devices based on novel materials, such as high permittivity dielectric structures and metamaterials. These materials can substantially enhance SNR, thus potentially increasing image resolution or allowing faster examinations.