This article reviews recent developments in designing and testing new types of materials
which can be:(i) placed around the body for in vivo imaging,(ii) be integrated into a …

Purpose Radiofrequency field inhomogeneity is a significant issue in imaging large fields of
view in high‐and ultrahigh‐field MRI. Passive shimming with coupled coils or dielectric pads …

Purpose Incorporating high dielectric constant (HDC) materials into radiofrequency (RF)
coils has been shown to effectively improve RF coil performance at 7 and 3 T because of the …

Purpose Recent numerical and empirical results proved that high permittivity materials
(HPM) used in pads placed near the subject or directly integrated with coils can increase the …

Flexible, stretchable, and MR-invisible dielectric materials were studied to increase the local
magnetic field (B 1) and signal-to-noise ratio (SNR) in magnetic resonance imaging. An …

Objective: We propose a framework to interpret the effects of High Permittivity Materials
(HPM) on the performance of radiofrequency coils in Magnetic Resonance Imaging (MRI) …

Purpose Investigating the designs and effects of high dielectric constant (HDC) materials in
the shape of a conformal helmet on the enhancement of RF field and reduction of specific …

A stable volume integral equation (VIE) solver based on polarization/magnetization currents
is presented, for the accurate and efficient computation of the electromagnetic (EM) …

Purpose To present a 3T brain imaging study using a conformal prototype helmet
constructed with an ultra‐high dielectric constant (uHDC; εr~ 1000) materials that can be …

Purpose High permittivity dielectric pads are known to be effective for tailoring the RF field
and improving image quality in high field MRI. Despite a number of studies reporting benign …