With the increasing availability of ultra-high field MRI systems, studying non-proton nuclei (X-
nuclei), such as 23 Na and 31 P has received great interest. X-nuclei are able to provide …

The transmit/receive (T/R) switch is an important device in magnetic resonance imaging
scanners whenever T/R radio frequency coils are intended to be used. It is placed between …

Radiofrequency (RF) surface coils are extensively used as receivers in magnetic resonance
imaging (MRI) and magnetic resonance spectroscopy (MRS) systems thanks to their high …

Sodium (23 Na) MRI provides complementary cellular and metabolic information. However,
the intrinsic MR sensitivity of 23 Na is considerably lower compared with that of the proton …

Purpose To study the role of temperature in biological systems, diagnostic contrasts and
thermal therapies, RF pulses for MR spin excitation can be deliberately used to apply a …

This article presents a dual‐tuned (DT) radiofrequency (RF) coil for signal acquisition of 2
nuclei, namely, hydrogen (1H) and sodium (23Na), in the ultra‐high magnetic field of a 7‐T …

The utility of wideband high field nuclear magnetic resonance (NMR) spectrometers is
significant in many applications. Wideband radio frequency (RF) front-ends are critical for …

In this paper, we present the initial experimental investigation of a two-coil receive/transmit
design for small animals imaging at 7T MRI. The system uses a butterfly-type coil tuned to …

This article introduces two new designs of transmit/receive switches for 7‐Tesla magnetic
resonance imaging. Both designs based on a microstripline coupler technology. In the first …

In this article, a compact transmitting/receiving switch is designed with concentric
microstriplines on the top and bottom faces of a coupler to handle RF signals to/from 1H and …