The development of MRI systems operating at or above 7 T has provided researchers with a
new window into the human body, yielding improved imaging speed, resolution and signal …

Following the development of parallel imaging, parallel transmission describes the use of
multiple RF transmit coils. Parallel transmission can be applied to improve RF excitation, in …

At ultra-high fields, the assessment of radiofrequency (RF) safety presents several new
challenges compared to low-field systems. Multi-channel RF transmit coils in combination …

In this work, computational methods were utilized to optimize the field produced by the
transverse electromagnetic (TEM) resonator in the presence of the human head at 8 Tesla …

The specific absorption rate (SAR) is a limiting factor in high‐field MR. SAR estimation is
typically performed by numerical simulations using generic human body models. However …

B1 Field inhomogeneity and the relative effects of dielectric resonances are analyzed within
the context of ultra high field MRI. This is accomplished by calculating the electromagnetic …

This paper reviews the field of multiple or parallel radiofrequency (RF) transmission for
magnetic resonance imaging (MRI). Currently the use of ultra-high field (UHF) MRI at 7 tesla …

The specific absorption rate (SAR) is a limiting constraint in sequence design for high‐field
MRI. SAR estimation is typically performed by numerical simulations using generic human …

The high frequency of the radiofrequency (RF) fields used in high field magnetic resonance
imaging (MRI) results in electromagnetic field variations that can cause local regions to have …

Multichannel transmit magnetic resonance imaging (MR) systems have the potential to
compensate for signal‐intensity variations occurring at higher field strengths due to wave …