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 …

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 …

Parallel transmission is a very promising candidate technology to mitigate the inevitable
radio-frequency (RF) field inhomogeneity in magnetic resonance imaging at ultra-high field …

Deep Brain Stimulation (DBS) is increasingly used to treat a variety of brain diseases by
sending electrical impulses to deep brain nuclei through long, electrically conductive leads …

Purpose Tailored parallel‐transmit (pTx) pulses produce uniform excitation profiles at 7 T,
but are sensitive to head motion. A potential solution is real‐time pulse redesign. A deep …

Purpose To establish a framework for transmit array power balance calculations based on
power correlation matrices to accurately quantify the loss contributions from different …

Radiofrequency shimming with multiple channel excitation has been proposed to increase
the transverse magnetic field uniformity and reduce specific absorption rate at high magnetic …

Purpose We investigated global specific absorption rate (SAR) and radiofrequency (RF)
power requirements in parallel transmission as the distance between the transmit coils and …

In ultra‐high‐field magnetic resonance imaging, parallel radiofrequency (RF) transmission
presents both opportunities and challenges for specific absorption rate management. On …

Transmit efficiency specifies the amplitude of the magnetic resonance excitation field
produced over a region of interest with respect to the radiofrequency (RF) power deposited …