During an MRI scan, the radiofrequency field from the scanner's transmit coil, but also the
switched gradient fields, induce currents in any conductive object in the bore. This makes …

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 …

Currently, human magnetic resonance (MR) examinations are becoming highly specialized
with a pre-defined and often relatively small target in the body. Conventionally, clinical MR …

Patients with implanted medical devices such as deep brain stimulation or spinal cord
stimulation are often unable to receive magnetic resonance imaging (MRI). This is because …

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 …

Objective The purpose of this work is to investigate the use of ceramic materials (based on
BaTiO 3 with ZrO 2 and CeO 2-additives) with very high relative permittivity (ε r∼ 4500) to …

In this work, we experimentally demonstrate an increase in the local transmit efficiency of a
1.5 T MRI scanner by using a metasurface formed by an array of brass wires embedded in a …

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 …

In this paper, the impact of the electrode structure on radio-frequency (RF) induced heating
near an active implantable medical device implanted lead under magnetic resonance …

In this paper, an absorbing radio frequency shield (ARFS) is developed to reduce the radio
frequency (RF)-induced heating for active implantable medical device (AIMD) during …